How can I determine if a date is between two dates in Java

Question

How can I check if a date is between two other dates  in the case where all three dates are represented by instances of java util Date

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Here you go   public static void main String   args  throws ParseException            SimpleDateFormat sdf   new SimpleDateFormat  MM dd yyyy             String oeStartDateStr    04 01            String oeEndDateStr    11 14             Calendar cal   Calendar getInstance            Integer year   cal get Calendar YEAR            oeStartDateStr   oeStartDateStr concat year toString             oeEndDateStr   oeEndDateStr concat year toString              Date startDate   sdf parse oeStartDateStr           Date endDate   sdf parse oeEndDateStr           Date d   new Date            String currDt   sdf format d             if  d after startDate   amp  amp   d before endDate        currDt equals sdf format startDate     currDt equals sdf format endDate                  System out println  Date is between 1st april to 14th nov                         else              System out println  Date is not between 1st april to 14th nov

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Here s a couple ways to do this using the Joda-Time 2 3 library   One way is to use the simple isBefore and isAfter methods on DateTime instances  By the way  DateTime in Joda-Time is similar in concept to a java util Date  a moment in time on the timeline of the Universe  but includes a time zone   Another way is to build an Interval in Joda-Time  The contains method tests if a given DateTime occurs within the span of time covered by the Interval  The beginning of the Interval is inclusive  but the endpoint is exclusive  This approach is known as  Half-Open   symbolically      See both ways in the following code example   Convert the java util Date instances to Joda-Time DateTime instances  Simply pass the Date instance to constructor of DateTime  In practice you should also pass a specific DateTimeZone object rather than rely on JVM   s default time zone   DateTime dateTime1   new DateTime  new java util Date     minusWeeks  1    DateTime dateTime2   new DateTime  new java util Date      DateTime dateTime3   new DateTime  new java util Date     plusWeeks  1      Compare by testing for before after     boolean is1After2   dateTime1 isAfter  dateTime2    boolean is2Before3   dateTime2 isBefore  dateTime3     boolean is2Between1And3       dateTime2 isAfter  dateTime1      amp  amp    dateTime2 isBefore  dateTime3          Using the Interval approach instead of isAfter isBefore     Interval interval   new Interval  dateTime1  dateTime3    boolean intervalContainsDateTime2   interval contains  dateTime2      Dump to console     System out println   DateTimes      dateTime1         dateTime1         dateTime1    System out println   is1After2     is1After2    System out println   is2Before3     is2Before3    System out println   is2Between1And3     is2Between1And3    System out println   intervalContainsDateTime2     intervalContainsDateTime2      When run     DateTimes  2014-01-22T20 26 14 955-08 00 2014-01-22T20 26 14 955-08 00 2014-01-22T20 26 14 955-08 00 is1After2 false is2Before3 true is2Between1And3 true intervalContainsDateTime2 true

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Another option  min getTime    lt   d getTime    amp  amp  d getTime    lt   max getTime

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Between dates Including end points can be written as   public static boolean isDateInBetweenIncludingEndPoints final Date min  final Date max  final Date date       return   date before min     date after max

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You might want to take a look at Joda Time which is a really good API for dealing with date time  Even though if you don t really need it for the solution to your current question it is bound to save you pain in the future

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Like so   Date min  max       assume these are set to something Date d              the date in question  return d compareTo min   gt   0  amp  amp  d compareTo max   lt   0    You can use  gt  instead of  gt   and  lt  instead of  lt   to exclude the endpoints from the sense of  between

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you can use getTime   and compare the returned long UTC values   EDIT if you are sure you ll not have to deal with dates before 1970  not sure how it will behave in that case

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import java util Date   public class IsDateBetween    public static void main  String   args               IsDateBetween idb new IsDateBetween  12 05 2010       passing your Date     public IsDateBetween String dd            long  from Date parse  01 01 2000        From some date         long to Date parse  12 12 2010           To Some Date         long check Date parse dd           int x 0         if  check-from  gt 0  amp  amp   to-check  gt 0                       x 1            System out println   From Date is greater Than  ToDate     x

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This might be a bit more readable   Date min  max       assume these are set to something Date d              the date in question  return d after min   amp  amp  d before max

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If you don t know the order of the min max values  Date a  b       assume these are set to something Date d          the date in question  return a compareTo d    d compareTo b   gt  0    If you want the range to be inclusive   return a compareTo d    d compareTo b   gt   0

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Here s how to find whether today is between 2 months   private boolean isTodayBetween int from  int to        if  from  lt  0    to  lt  0    from  gt  Calendar DECEMBER    to  gt  Calendar DECEMBER            throw new IllegalArgumentException  Invalid month provided  from       from     to       to             Date now   new Date        GregorianCalendar cal   new GregorianCalendar        cal setTime now       int thisMonth   cal get Calendar MONTH       if  from  gt  to            to   to   Calendar DECEMBER          thisMonth   thisMonth   Calendar DECEMBER            if  thisMonth  gt   from  amp  amp  thisMonth  lt   to            return true            return false      and call it like   isTodayBetween Calendar OCTOBER  Calendar MARCH

[java] How can I determine if a date is between two dates in Java?

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