Check if a given time lies between two times regardless of date

Question

I have timespans   String time1   01 00 00 String time2   05 00 00  I want to check if time1 and time2 both lies between 20 11 13 and 14 49 00  Actually  01 00 00 is greater than 20 11 13 and less than 14 49 00 considering 20 11 13 is always less than 14 49 00  This is given prerequisite  So what I want is  20 11 13  lt  01 00 00  lt  14 49 00  So I need something like that   public void getTimeSpans         boolean firstTime   false  secondTime   false           if time1  gt   quot 20 11 13 quot   amp  amp  time1  lt   quot 14 49 00 quot                firstTime   true                 if time2  gt   quot 20 11 13 quot   amp  amp  time2  lt   quot 14 49 00 quot                secondTime   true            I know that this code does not give correct result as I am comparing the string objects  How to do that as they are the timespans but not the strings to compare

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tl dr     20 11 13  lt  01 00 00  lt  14 49 00   LocalTime target   LocalTime parse   01 00 00      Boolean targetInZone          target isAfter  LocalTime parse   20 11 13            amp  amp       target isBefore  LocalTime parse   14 49 00              java time LocalTime  The java time classes include LocalTime to represent a time-of-day only without a date and without a time zone      So what I want is  20 11 13  lt  01 00 00  lt  14 49 00    First we define the boundaries  Your input strings happen to comply with standard ISO 8601 formats  The java time classes use ISO 8601 formats by default  so no need to specify a formatting pattern   LocalTime start   LocalTime parse   20 11 13     LocalTime stop   LocalTime parse   14 49 00       And define our test case  the target 01 00 00   LocalTime target   LocalTime parse   01 00 00       Now we are set up to compare these LocalTime objects  We want to see if the target is after the later time but before the earlier time  That means middle of the night in this case  between approximately 8 PM and 3 AM the next morning   Boolean isTargetAfterStartAndBeforeStop     target isAfter  start    amp  amp  target isBefore  stop         That test can be more simply stated as    not between 3 AM and 8 PM     We could then generalize to any pair of LocalTime objects where we test for between if the start comes before the stop with a 24-hour clock  and not between if start comes after the stop  as in the case of this Question     Further more  spans of time are usually handled with the Half-Open approach where the beginning is inclusive while the ending is exclusive  So a  between  comparison  strictly speaking  would be    is the target equal to or later than start AND the target is before stop     or more simply     is target not before start AND before stop      Boolean isBetweenStartAndStopStrictlySpeaking              target isBefore  start    amp  amp  target isBefore  stop         If the start is after the stop  within a 24-hour clock  then assume we want the logic suggested in the Question  is after 8 PM but before 3 AM    if  start isAfter  stop           return   isBetweenStartAndStopStrictlySpeaking     else       return isBetweenStartAndStopStrictlySpeaking         About java time  The java time framework is built into Java 8 and later  These classes supplant the troublesome old legacy date-time classes such as java util Date  Calendar   amp  SimpleDateFormat   The Joda-Time project  now in maintenance mode  advises migration to the java time classes   To learn more  see the Oracle Tutorial  And search Stack Overflow for many examples and explanations  Specification is JSR 310   You may exchange java time objects directly with your database  Use a JDBC driver compliant with JDBC 4 2 or later  No need for strings  no need for java sql   classes   Where to obtain the java time classes     Java SE 8  Java SE 9  Java SE 10  and later   Built-in   Part of the standard Java API with a bundled implementation  Java 9 adds some minor features and fixes   Java SE 6 and Java SE 7   Much of the java time functionality is back-ported to Java 6  amp  7 in ThreeTen-Backport   Android   Later versions of Android bundle implementations of the java time classes  For earlier Android   lt 26   the ThreeTenABP project adapts ThreeTen-Backport  mentioned above   See How to use ThreeTenABP        The ThreeTen-Extra project extends java time with additional classes  This project is a proving ground for possible future additions to java time  You may find some useful classes here such as Interval  YearWeek  YearQuarter  and more

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As many people noticed  it s not a date problem  it s a logic problem  Let s assume a day is splitted in two intervals  one lies between 20 11 13 and 14 49 00  while the other lies between 14 49 00 and 20 11 13  which interval the extremes belong is up to you   If you want to check if a certain time is included in the 20 11 13 14 49 00 one  the one you re interested of  just check if it s included in the other one  14 49 00 20 11 13  which is much easier because the natural order of the numbers  and then negate the result

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After reading a few replies  I feel the writing is too complicated  Try my code   public static boolean compare String system time  String currentTime  String endtimes        try           SimpleDateFormat simpleDateFormat   new SimpleDateFormat  HH mm ss             Date startime   simpleDateFormat parse  19 25 00            Date endtime   simpleDateFormat parse  20 30 00               current time         Date current time   simpleDateFormat parse  20 00 00         if  current time after startime   amp  amp  current time before endtime                 System out println  Yes                return true              else if  current time after startime   amp  amp  current time after endtime              return true    overlap condition check              else               System out println  No                return false                  catch  ParseException e            e printStackTrace              return false

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Calendar now   Calendar getInstance      int hour   now get Calendar HOUR OF DAY      Get hour in 24 hour format  int minute   now get Calendar MINUTE     Date date   parseDate hour         minute    Date dateCompareOne   parseDate  08 00     Date dateCompareTwo   parseDate  20 00      if  dateCompareOne before  date    amp  amp  dateCompareTwo after date           your logic      private Date parseDate String date         final String inputFormat    HH mm       SimpleDateFormat inputParser   new SimpleDateFormat inputFormat  Locale US       try            return inputParser parse date         catch  java text ParseException e             return new Date 0              Further more  to be more precise  If you compare a time between an interval more than 00 00 to 24 00 of that day   you need to parse the day too

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strip colons from the  time   to and  from strings  convert to int and then use the following condition to check if the time is between from and to  Example is in php  but shouldn t matter   if   to  lt   from  amp  amp    time  gt    from     time  lt    to            time  gt    from  amp  amp   time  lt    to         return true

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Java 8 - LocalDateTime  What about this   final LocalDateTime now   LocalDateTime now    final LocalDateTime minRange   LocalDateTime of now getYear    now getMonth    now getDayOfMonth    22  30     Today  10 30pm LocalDateTime maxRange   LocalDateTime of now getYear    now getMonth    now getDayOfMonth    6  30     Tomorrow  6 30am maxRange   maxRange plusDays 1     Ensures that you don t run into an exception if minRange is the last day in the month  if  now isAfter minRange   amp  amp  now isBefore maxRange           Action

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In the code snipet below  it is being verified that if the current time  can be any  exists between start and end time or not           Calendar startTimeCal   Calendar getInstance            startTimeCal setTime startTime            int startTimeHour   startTimeCal get Calendar HOUR OF DAY            if  startTimeHour    0               startTimeHour   24                     int startTimeMinutes   startTimeCal get Calendar MINUTE            Calendar curTimeCal   Calendar getInstance            curTimeCal setTime currentTime            int curTimeHour   curTimeCal get Calendar HOUR OF DAY           int curTimeMinutes   curTimeCal get Calendar MINUTE            Calendar endTimeCal   Calendar getInstance            endTimeCal setTime endTime            int endTimeHour   endTimeCal get Calendar HOUR OF DAY            if  endTimeHour    0                endTimeHour   24                     int endTimeMinutes   endTimeCal get Calendar MINUTE            if    curTimeHour  gt  startTimeHour      curTimeHour    startTimeHour  amp  amp  curTimeMinutes  gt   startTimeMinutes    amp  amp                    curTimeHour  lt  endTimeHour      curTimeHour    endTimeHour  amp  amp  curTimeMinutes  lt   endTimeHour                  time exists between start and end time           else                   time doesn t exist between start and end time

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Based on the ideas and solutions of most authors here  I d like to share my refined solution with a presumably cleaner code              Checks if some date is within a time window given by start and end dates        param checkDate - date to check if its hours and minutes is between the startDate and endDate     param startDate - startDate of the time window     param endDate - endDate of the time window     return - returns true if hours and minutes of checkDate is between startDate and endDate     public static boolean isDateBetweenStartAndEndHoursAndMinutes Date checkDate  Date startDate  Date endDate        if  startDate    null    endDate    null          return false       LocalDateTime checkLdt   LocalDateTime ofInstant Instant ofEpochMilli checkDate getTime     ZoneId systemDefault         LocalDateTime startLdt   LocalDateTime ofInstant Instant ofEpochMilli startDate getTime     ZoneId systemDefault         LocalDateTime endLdt   LocalDateTime ofInstant Instant ofEpochMilli endDate getTime     ZoneId systemDefault             Table of situations         Input dates  start  a   end  b   check  c         Interpretations         t x    time of point x on timeline  v x    nominal value of x         Situation A - crossing midnight         c INSIDE             1  t a   lt  t c   lt  t b    v b   lt  v a   lt  v c     e g  a 22 00  b 03 00  c 23 00  before midnight              2  t a   lt  t c   lt  t b    v c   lt  v b   lt  v a     e g  a 22 00  b 03 00  c 01 00  after midnight         c OUTSIDE             3  t c   lt  t a   lt  t b    v b   lt  v c   lt  v a     e g  a 22 00  b 03 00  c 21 00             4  t a   lt  t b   lt  t c    v b   lt  v c   lt  v a     e g  a 22 00  b 03 00  c 04 00                                       --- v b   lt  v a  always when shift spans around midnight          Situation B - after before midnight         c INSIDE             1  t a    t c   lt  t b    v a    v c   lt  v b     e g  a 06 00  b 14 00  c 06 00             2  t a   lt  t c   lt  t b    v a   lt  v c   lt  v b     e g  a 06 00  b 14 00  c 08 00        c OUTSIDE             3  t c   lt  t a   lt  t b    v c   lt  v a   lt  v b     e g  a 06 00  b 14 00  c 05 00             4  t a   lt  t b    t c    v a   lt  v b    v c     e g  a 06 00  b 14 00  c 14 00             5  t a   lt  t b   lt  t c    v a   lt  v b   lt  v c     e g  a 06 00  b 14 00  c 15 00                                       --- v a   lt  v b  if shift starts after midnight and ends before midnight          Check for situation A - crossing midnight      boolean crossingMidnight   endLdt isBefore startLdt        if  crossingMidnight               A 1         if   startLdt isBefore checkLdt     startLdt isEqual checkLdt       t a   lt  t c                   amp  amp  checkLdt isBefore endLdt plusDays 1       t c   lt  t b 1D              return true              A 2         if  startLdt isBefore checkLdt plusDays 1        t a   lt  t c 1D                   amp  amp  checkLdt isBefore endLdt      t c   lt  t b              return true              A 3         if  startLdt isBefore endLdt plusDays 1        t a   lt  t b 1D                   amp  amp  checkLdt isBefore startLdt      t c   lt  t a              return false              A 4         if  startLdt isBefore endLdt plusDays 1        t a   lt  t b 1D                   amp  amp  checkLdt isAfter endLdt      t b   lt  t c              return false        else              B 1   B 2         if   startLdt isEqual checkLdt     startLdt isBefore checkLdt       t a    t c     t a   lt  t c                   amp  amp  checkLdt isBefore endLdt      t c   lt  t b              return true             return false      For the sake of completeness I ve added the conditions of A 3 and A 4  but in productive code you can leave it out   Now you can simply create your start and end dates  as well as your time you want to check and call this static method  The code would go then as follows   Date check   new SimpleDateFormat  HH mm ss   parse  01 00 00    Date start   new SimpleDateFormat  HH mm ss   parse  20 11 13    Date end   new SimpleDateFormat  HH mm ss   parse  14 49 00     if  isDateBetweenStartAndEndHoursAndMinutes check  start  end         Print  checkDate is within start and End date        adjust this true condition to your needs     For the TDD aspect I ve added unit tests for the scenarios A and B as given above  Please feel free to check it out and report back if you find any errors or spots for optimization   import org junit jupiter api Test   import java time LocalDateTime  import java time ZoneId  import java util Date   import static org junit Assert assertFalse  import static org junit Assert assertTrue   class LogiqDateUtilsTest         private LocalDateTime startShiftSituationALdt   LocalDateTime of 0  1  1  22  0       private Date startOfShiftSituationA   Date from startShiftSituationALdt atZone ZoneId systemDefault    toInstant          private LocalDateTime endShiftSituationALdt   LocalDateTime of 0  1  1  3  0       private Date endOfShiftSituationA   Date from endShiftSituationALdt atZone ZoneId systemDefault    toInstant          private LocalDateTime startShiftSituationBLdt   LocalDateTime of 0  1  1  6  0       private Date startOfShiftSituationB   Date from startShiftSituationBLdt atZone ZoneId systemDefault    toInstant          private LocalDateTime endShiftSituationBLdt   LocalDateTime of 0  1  1  14  0       private Date endOfShiftSituationB   Date from endShiftSituationBLdt atZone ZoneId systemDefault    toInstant           Test     void testSituationA1             LocalDateTime checkLdt   LocalDateTime of 0  1  1  23  0           Date checkBetween   Date from checkLdt atZone ZoneId systemDefault    toInstant              assertTrue isDateBetweenStartAndEndHoursAndMinutes checkBetween  startOfShiftSituationA  endOfShiftSituationA                Test     void testSituationA2             LocalDateTime checkLdt   LocalDateTime of 0  1  1  1  0           Date checkBetween   Date from checkLdt atZone ZoneId systemDefault    toInstant              assertTrue isDateBetweenStartAndEndHoursAndMinutes checkBetween  startOfShiftSituationA  endOfShiftSituationA                Test     void testSituationA3             LocalDateTime checkLdt   LocalDateTime of 0  1  1  21  1           Date checkBetween   Date from checkLdt atZone ZoneId systemDefault    toInstant              assertFalse isDateBetweenStartAndEndHoursAndMinutes checkBetween  startOfShiftSituationA  endOfShiftSituationA                Test     void testSituationA4             LocalDateTime checkLdt   LocalDateTime of 0  1  1  4  1           Date checkBetween   Date from checkLdt atZone ZoneId systemDefault    toInstant              assertFalse isDateBetweenStartAndEndHoursAndMinutes checkBetween  startOfShiftSituationA  endOfShiftSituationA                Test     void testSituationB1             LocalDateTime checkLdt   LocalDateTime of 0  1  1  6  0           Date checkBetween   Date from checkLdt atZone ZoneId systemDefault    toInstant              assertTrue isDateBetweenStartAndEndHoursAndMinutes checkBetween  startOfShiftSituationB  endOfShiftSituationB                Test     void testSituationB2             LocalDateTime checkLdt   LocalDateTime of 0  1  1  8  0           Date checkBetween   Date from checkLdt atZone ZoneId systemDefault    toInstant              assertTrue isDateBetweenStartAndEndHoursAndMinutes checkBetween  startOfShiftSituationB  endOfShiftSituationB                Test     void testSituationB3             LocalDateTime checkLdt   LocalDateTime of 0  1  1  5  0           Date checkBetween   Date from checkLdt atZone ZoneId systemDefault    toInstant              assertFalse isDateBetweenStartAndEndHoursAndMinutes checkBetween  startOfShiftSituationB  endOfShiftSituationB                Test     void testSituationB4             LocalDateTime checkLdt   LocalDateTime of 0  1  1  14  0           Date checkBetween   Date from checkLdt atZone ZoneId systemDefault    toInstant              assertFalse isDateBetweenStartAndEndHoursAndMinutes checkBetween  startOfShiftSituationB  endOfShiftSituationB                Test     void testSituationB5             LocalDateTime checkLdt   LocalDateTime of 0  1  1  15  0           Date checkBetween   Date from checkLdt atZone ZoneId systemDefault    toInstant              assertFalse isDateBetweenStartAndEndHoursAndMinutes checkBetween  startOfShiftSituationB  endOfShiftSituationB              Cheers

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You can use the Calendar class in order to check   For example   try       String string1    20 11 13       Date time1   new SimpleDateFormat  HH mm ss   parse string1       Calendar calendar1   Calendar getInstance        calendar1 setTime time1       calendar1 add Calendar DATE  1         String string2    14 49 00       Date time2   new SimpleDateFormat  HH mm ss   parse string2       Calendar calendar2   Calendar getInstance        calendar2 setTime time2       calendar2 add Calendar DATE  1        String someRandomTime    01 00 00       Date d   new SimpleDateFormat  HH mm ss   parse someRandomTime       Calendar calendar3   Calendar getInstance        calendar3 setTime d       calendar3 add Calendar DATE  1        Date x   calendar3 getTime        if  x after calendar1 getTime     amp  amp  x before calendar2 getTime                 checkes whether the current time is between 14 49 00 and 20 11 13          System out println true           catch  ParseException e        e printStackTrace

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Modified  Surendra Jnawali  code  It fails   if current time is 23 40 00 i e greater than start time and less than equals to 23 59 59    All credit goes to the real owner   This is how it should be  This works perfect    public static boolean isTimeBetweenTwoTime String argStartTime              String argEndTime  String argCurrentTime  throws ParseException           String reg       0-1  0-9  2 0-3     0-5  0-9     0-5  0-9                         if  argStartTime matches reg   amp  amp  argEndTime matches reg                   amp  amp  argCurrentTime matches reg                 boolean valid   false                 Start Time             java util Date startTime   new SimpleDateFormat  HH mm ss                        parse argStartTime               Calendar startCalendar   Calendar getInstance                startCalendar setTime startTime                   Current Time             java util Date currentTime   new SimpleDateFormat  HH mm ss                        parse argCurrentTime               Calendar currentCalendar   Calendar getInstance                currentCalendar setTime currentTime                   End Time             java util Date endTime   new SimpleDateFormat  HH mm ss                        parse argEndTime               Calendar endCalendar   Calendar getInstance                endCalendar setTime endTime                               if  currentTime compareTo endTime   lt  0                     currentCalendar add Calendar DATE  1                   currentTime   currentCalendar getTime                                if  startTime compareTo endTime   lt  0                     startCalendar add Calendar DATE  1                   startTime   startCalendar getTime                                              if  currentTime before startTime                      System out println   Time is Lesser                      valid   false                else                    if  currentTime after endTime                         endCalendar add Calendar DATE  1                       endTime   endCalendar getTime                                        System out println  Comparing   Start Time  n     startTime                   System out println  Comparing   End Time  n     endTime                   System out                          println  Comparing   Current Time  n     currentTime                    if  currentTime before endTime                         System out println  RESULT  Time lies b w                        valid   true                    else                       valid   false                      System out println  RESULT  Time does not lies b w                                                 return valid             else               throw new IllegalArgumentException                       Not a valid time  expecting HH MM SS format                       RESULT  Comparing   Start Time  n    Thu Jan 01 23 00 00 IST 1970 Comparing   End Time  n      Fri Jan 02 02 00 00 IST 1970 Comparing   Current Time  n  Fri Jan 02 01 50 00 IST 1970 RESULT  Time lies b w

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Logically if you do the following you should always be ok granted we use military time     if start time is greater than end time add 24 to end time else use times as is  compare current time to be inbetween start and end time

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There are lots of answers here but I want to provide a new one which is similar with Basil Bourque s answer but with a full code example  So please see the method below   private static void checkTime String startTime  String endTime  String checkTime        DateTimeFormatter formatter   DateTimeFormatter ofPattern  HH mm ss   Locale US       LocalTime startLocalTime   LocalTime parse startTime  formatter       LocalTime endLocalTime   LocalTime parse endTime  formatter       LocalTime checkLocalTime   LocalTime parse checkTime  formatter        boolean isInBetween   false      if  endLocalTime isAfter startLocalTime           if  startLocalTime isBefore checkLocalTime   amp  amp  endLocalTime isAfter checkLocalTime               isInBetween   true                else if  checkLocalTime isAfter startLocalTime     checkLocalTime isBefore endLocalTime             isInBetween   true             if  isInBetween            System out println  Is in between           else           System out println  Is not in between               Either if you are calling this method using   checkTime  20 11 13    14 49 00    01 00 00      Or using   checkTime  20 11 13    14 49 00    05 00 00      The result will be   Is in between

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param initialTime - in format HH mm ss     param finalTime   - in format HH mm ss     param timeToCheck - in format HH mm ss     return initialTime  lt   timeToCheck  lt  finalTime     throws IllegalArgumentException if passed date with wrong format     public static boolean isTimeBetweenTwoTime String initialTime  String finalTime  String timeToCheck  throws IllegalArgumentException       String reg       0-1  0-9  2 0-3     0-5  0-9     0-5  0-9          if  initialTime matches reg   amp  amp  finalTime matches reg   amp  amp  timeToCheck matches reg             SimpleDateFormat dateFormat   new SimpleDateFormat  HH mm ss   Locale getDefault             Date inTime   parseDate dateFormat  initialTime           Date finTime   parseDate dateFormat  finalTime           Date checkedTime   parseDate dateFormat  timeToCheck            if  finalTime compareTo initialTime   lt  0                Calendar calendar   Calendar getInstance                calendar setTime finTime               calendar add Calendar DAY OF YEAR  1               finTime   calendar getTime                if  timeToCheck compareTo initialTime   lt  0                    calendar setTime checkedTime                   calendar add Calendar DAY OF YEAR  1                   checkedTime   calendar getTime                                     return  checkedTime after inTime     checkedTime compareTo inTime     0   amp  amp  checkedTime before finTime         else           throw new IllegalArgumentException  Not a valid time  expecting HH MM SS format                     param initialTime - in format HH mm ss     param finalTime   - in format HH mm ss     return initialTime  lt   now  lt  finalTime     throws IllegalArgumentException if passed date with wrong format     public static boolean isNowBetweenTwoTime String initialTime  String finalTime  throws IllegalArgumentException       return isTimeBetweenTwoTime initialTime  finalTime              String valueOf DateFormat format  HH mm ss   new Date               private static Date parseDate SimpleDateFormat dateFormat  String data        try           return dateFormat parse data         catch  ParseException e            throw new IllegalArgumentException  Not a valid time

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This worked for me  fun timeBetweenInterval      openTime  String      closeTime  String    Boolean       try           val dateFormat   SimpleDateFormat TIME FORMAT          val afterCalendar   Calendar getInstance   apply               time   dateFormat parse openTime              add Calendar DATE  1                    val beforeCalendar   Calendar getInstance   apply               time   dateFormat parse closeTime              add Calendar DATE  1                     val current   Calendar getInstance   apply               val localTime   dateFormat format timeInMillis              time   dateFormat parse localTime              add Calendar DATE  1                    return current time after afterCalendar time   amp  amp  current time before beforeCalendar time        catch  e  ParseException            e printStackTrace           return false

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The answer given by  kocko works in only same day  If start time  23 00 00  and end  02 00 00  next day  and current time is  01 30 00  then result will false    I modified the  kocko s answer to work perfectly  public static boolean isTimeBetweenTwoTime String initialTime  String finalTime       String currentTime  throws ParseException        String reg       0-1  0-9  2 0-3     0-5  0-9     0-5  0-9          if  initialTime matches reg   amp  amp  finalTime matches reg   amp  amp           currentTime matches reg                  boolean valid   false            Start Time           all times are from java util Date         Date inTime   new SimpleDateFormat  HH mm ss   parse initialTime           Calendar calendar1   Calendar getInstance            calendar1 setTime inTime              Current Time         Date checkTime   new SimpleDateFormat  HH mm ss   parse currentTime           Calendar calendar3   Calendar getInstance            calendar3 setTime checkTime              End Time         Date finTime   new SimpleDateFormat  HH mm ss   parse finalTime           Calendar calendar2   Calendar getInstance            calendar2 setTime finTime            if  finalTime compareTo initialTime   lt  0                         calendar2 add Calendar DATE  1               calendar3 add Calendar DATE  1                      java util Date actualTime   calendar3 getTime            if   actualTime after calendar1 getTime                     actualTime compareTo calendar1 getTime       0   amp  amp                actualTime before calendar2 getTime                            valid   true              return valid            else               throw new IllegalArgumentException  Not a valid time  expecting              HH MM SS format                        Output      07 00 00  -  17 30 00  -  15 30 00   current  - true  17 00 00  -  21 30 00  -  16 30 00   current  - false  23 00 00  -  04 00 00  -  02 00 00   current  - true  00 30 00  -  06 00 00  -  06 00 00   current  - false     I have included lower limit value to  upper limit value-1

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As with the help of  kocko  the complete working code is as below   try  Date time11   new SimpleDateFormat  HH mm ss   parse  20 11 13    Calendar calendar1   Calendar getInstance    calendar1 setTime time11    Date time22   new SimpleDateFormat  HH mm ss   parse  14 49 00    Calendar calendar2   Calendar getInstance    calendar2 setTime time22    Date currentTime   new SimpleDateFormat  HH mm ss   parse  00 00 00    Calendar startingCalendar   Calendar getInstance    startingCalendar setTime currentTime   startingCalendar add Calendar DATE  1        let s say we have to check about 01 00 00 String someRandomTime   time1  Date d   new SimpleDateFormat  HH mm ss   parse someRandomTime   Calendar calendar3   Calendar getInstance    calendar3 setTime d    if startingCalendar getTime   after calendar1 getTime       calendar2 add Calendar DATE  1        calendar3 add Calendar DATE  1      Date x   calendar3 getTime     if  x after calendar1 getTime     amp  amp  x before calendar2 getTime        System out println  Time is in between        else   System out println  Time is not in between           catch  ParseException e     e printStackTrace

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I did it this way   LocalTime time   LocalTime now    if  time isAfter LocalTime of 02  00    amp  amp   time isBefore LocalTime of 04  00           log info  Checking after 2AM  before 4AM                             Edit   String time1    01 00 00     String time2    15 00 00     LocalTime time   LocalTime parse time2     if   time isAfter LocalTime of 20 11 13        time isBefore LocalTime of 14 49 0               System out println  true          else           System out println  false

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Simple solution for all gaps      public boolean isNowTimeBetween String startTime  String endTime            LocalTime start   LocalTime parse startTime     quot 22 00 quot          LocalTime end   LocalTime parse endTime     quot 10 00 quot          LocalTime now   LocalTime now             if  start isBefore end               return now isAfter start   amp  amp  now isBefore end            return now isBefore start                    now isBefore start   amp  amp  now isBefore end                    now isAfter start   amp  amp  now isAfter end

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In your case the starting time  20 11 13  is larger than the ending time  14 49 00   It is a reasonable assumption that you could solve the problem by adding a day on the ending time or subtracting a day from the starting time  if you do so  you will be trapped because you do not know on which day the testing time is     You can avoid this trap by checking whether your testing time is between the ending time and starting time  If true  then result is  not in between   else result is  well in between     Here is the function in JAVA I have been using  It works so far for me  Good luck   boolean IsTimeInBetween Calendar startC  Calendar endC  Calendar testC          assume year  month and day of month are all equal      startC set 1 1 1       endC set 1 1 1       testC set 1 1 1        if  endC compareTo startC   gt  0            if   testC compareTo startC  gt  0   amp  amp   testC compareTo endC  lt  0                 return true           else               return false                 else if   endC compareTo startC   lt  0            if   testC compareTo endC   gt   0   amp  amp   testC compareTo startC   lt   0                 return false            else               return true                  else     when endC compareTo startC   0  I return a ture value  Change it if you have different application           return true            To create a Calender instance you can use   Calendar startC   Calendar getInstance    startC set Calendar HOUR OF DAY  20   startC set Calendar MINUTE 11   startC set Calendar SECOND 13

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Following method checks whether  validateTime  is between  startTime   amp   endTime  or not while considering possibility that  endTime  can be a next day  To use it properly parse your dates in  HH mm  formant      public static final boolean isBetweenValidTime Date startTime  Date endTime  Date validateTime             boolean validTimeFlag   false           if endTime compareTo startTime   lt   0                        if validateTime compareTo endTime   lt  0    validateTime compareTo startTime   gt   0                                 validTimeFlag   true                                  else if validateTime compareTo endTime   lt  0  amp  amp  validateTime compareTo startTime   gt   0                         validTimeFlag   true                       return validTimeFlag

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Using LocalTime would simply ignore the Date value   public class TimeIntervalChecker    static final LocalTime time1   LocalTime parse   20 11 13       static final LocalTime time2   LocalTime parse   14 49 00           public static void main String   args  throws java lang Exception            LocalTime nowUtcTime   LocalTime now Clock systemUTC              if  nowUtcTime isAfter time1   amp  amp  nowUtcTime isBefore time2                  System out println nowUtcTime   is after     time1   and before     time2

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Sounds to me that your problem is an OR situation    You want to check if time1   20 11 13 OR time1  lt  14 49 00   There will never be a time greater to 20 11 13 that exceeds your range through the other end  14 49 00  and viceversa  Think of it as if you are checking that a time is NOT between a properly ordered couple of timestamps

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The Actual working function will be as follows  public static boolean isTimeBetweenTwoTime Date startTime  Date stopTime  Date currentTime          Start Time     Calendar StartTime   Calendar getInstance        StartTime setTime startTime         Current Time     Calendar CurrentTime   Calendar getInstance        CurrentTime setTime currentTime         Stop Time     Calendar StopTime   Calendar getInstance        StopTime setTime stopTime        if  stopTime compareTo startTime   lt  0            if  CurrentTime compareTo StopTime   lt  0                CurrentTime add Calendar DATE  1                     StopTime add Calendar DATE  1             return CurrentTime compareTo StartTime   gt   0  amp  amp  CurrentTime compareTo StopTime   lt  0

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Here is a solution that uses the new Java 8 classes  is compact  requires no regular expressions or manual arithmetic operations   My solution is coded for inclusive startTime and exclusive endTime  but can easily be modified for your needs   private boolean isTimeBetween String timeToTest  String startTime  String endTime         LocalTime timeToTestDt   LocalTime parse timeToTest  DateTimeFormatter ISO LOCAL TIME       LocalTime startTimeDt   LocalTime parse startTime  DateTimeFormatter ISO LOCAL TIME       LocalTime endTimeDt   LocalTime parse endTime  DateTimeFormatter ISO LOCAL TIME        if startTime equals endTime             return false            else if startTimeDt isBefore endTimeDt         Period does not cross the day boundary         return  timeToTest equals startTime     timeToTestDt isAfter startTimeDt                     amp  amp  timeToTestDt isBefore endTimeDt         else       Time period spans two days  e g  23 00 to 2 00         return     timeToTestDt isAfter endTimeDt     timeToTest equals endTime                     amp  amp  timeToTestDt isBefore startTimeDt                 getTimeSpans   from the original question would then look like this public void getTimeSpans         boolean firstTime   isTimeBetween  01 00 00    20 11 13    14 49 00        boolean secondTime   isTimeBetween  05 00 00    20 11 13    14 49 00

User · Answer

sorry for the sudo code  I m on a phone      between    time  lt  string2  amp  amp  time  gt  string1   if  string1  gt  string2   between    between    if they are timestamps or strings this works   just change the variable names to match

[java] Check if a given time lies between two times regardless of date

tl;dr

`java.time.LocalTime`

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