How can I increment a date by one day in Java

Question

I m working with a date in this format  yyyy-mm-dd   How can I increment this date by one day

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Take a look at Joda-Time  https   www joda org joda-time     DateTimeFormatter parser   ISODateTimeFormat date     DateTime date   parser parseDateTime dateString    String nextDay   parser print date plusDays 1

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Take a look at Joda-Time  https   www joda org joda-time     DateTimeFormatter parser   ISODateTimeFormat date     DateTime date   parser parseDateTime dateString    String nextDay   parser print date plusDays 1

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SimpleDateFormat dateFormat   new SimpleDateFormat   yyyy-MM-dd     Calendar cal   Calendar getInstance    cal setTime  dateFormat parse  inputString      cal add  Calendar DATE  1

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Try this method  public static Date addDay int day            Calendar calendar   Calendar getInstance            calendar setTime new Date             calendar add Calendar DATE  day           return calendar getTime

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Just pass date in String and number of next days     private String getNextDate String givenDate int noOfDays            SimpleDateFormat dateFormat   new SimpleDateFormat  yyyy-MM-dd            Calendar cal   Calendar getInstance            String nextDaysDate   null      try           cal setTime dateFormat parse givenDate            cal add Calendar DATE  noOfDays           nextDaysDate   dateFormat format cal getTime            catch  ParseException ex            Logger getLogger GR TravelRepublic class getName    log Level SEVERE  null  ex        finally      dateFormat   null      cal   null             return nextDaysDate

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It s simple actually  One day contains 86400000 milliSeconds   So first you get the current time in millis from The System by usingSystem currentTimeMillis   then add the 84000000 milliSeconds and use the Date Class to generate A date format for the milliseconds   Example   String Today   new Date System currentTimeMillis    toString     String Today will be 2019-05-9   String Tommorow   new Date System currentTimeMillis     86400000  toString     String Tommorow will be 2019-05-10  String DayAfterTommorow   new Date System currentTimeMillis      2   86400000   toString     String DayAfterTommorow will be 2019-05-11

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Java does appear to be well behind the eight-ball compared to C   This utility method shows the way to do in Java SE 6 using the Calendar add method  presumably the only easy way    public class DateUtil       public static Date addDays Date date  int days                Calendar cal   Calendar getInstance            cal setTime date           cal add Calendar DATE  days     minus number would decrement the days         return cal getTime              To add one day  per the question asked  call it as follows   String sourceDate    2012-02-29   SimpleDateFormat format   new SimpleDateFormat  yyyy-MM-dd    Date myDate   format parse sourceDate   myDate   DateUtil addDays myDate  1

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Please note that this line adds 24 hours   d1 getTime     1   24   60   60   1000   but this line adds one day  cal add  Calendar DATE  1      On days with a daylight savings time change  25 or 23 hours  you will get different results

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java time  On Java 8 and later  the java time package makes this pretty much automatic   Tutorial   Assuming String input and output   import java time LocalDate   public class DateIncrementer     static public String addOneDay String date        return LocalDate parse date  plusDays 1  toString

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If you are using Java 8  then do it like this   LocalDate sourceDate   LocalDate of 2017  Month MAY  27       Source Date LocalDate destDate   sourceDate plusDays 1      Adding a day to source date   DateTimeFormatter formatter   DateTimeFormatter ofPattern  yyyy-MM-dd       Setting date format  String destDate   destDate format formatter        End date   If you want to use SimpleDateFormat  then do it like this   String sourceDate    2017-05-27       Start date  SimpleDateFormat sdf   new SimpleDateFormat  yyyy-MM-dd     Calendar calendar   Calendar getInstance    calendar setTime sdf parse sourceDate       parsed date and setting to calendar  calendar add Calendar DATE  1       number of days to add String destDate   sdf format calendar getTime         End date

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In Java 8 simple way to do is   Date from Instant now   plusSeconds SECONDS PER DAY

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Date newDate   new Date    newDate setDate newDate getDate   1   System out println newDate

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Let s clarify the use case  You want to do calendar arithmetic and start end with a java util Date    Some approaches    Convert to string and back with SimpleDateFormat  This is an inefficient solution  Convert to LocalDate  You would lose any time-of-day information  Convert to LocalDateTime  This involves more steps and you need to worry about timezone  Convert to epoch with Date getTime    This is efficient but you are calculating with milliseconds    Consider using java time Instant   Date  now   new Date    Instant  instant    now toInstant   minus 5  ChronoUnit DAYS   Date  newDate   Date from  instant

User · Answer

Something like this should do the trick   String dt    2008-01-01       Start date SimpleDateFormat sdf   new SimpleDateFormat  yyyy-MM-dd    Calendar c   Calendar getInstance    c setTime sdf parse dt    c add Calendar DATE  1       number of days to add dt   sdf format c getTime         dt is now the new date

User · Answer

You can use this package from  org apache commons lang3 time     SimpleDateFormat sdf   new SimpleDateFormat  yyyy-MM-dd     Date myNewDate   DateUtils addDays myDate  4    Date yesterday   DateUtils addDays myDate  -1    String formatedDate   sdf format myNewDate

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long timeadj   24 60 60 1000  Date newDate   new Date  oldDate getTime    timeadj     This takes the number of milliseconds since epoch from oldDate and adds 1 day worth of milliseconds then uses the Date   public constructor to create a date using the new value  This method allows you to add 1 day  or any number of hours minutes  not only whole days

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Apache Commons already has this DateUtils addDays Date date  int amount      http   commons apache org proper commons-lang apidocs org apache commons lang3 time DateUtils html addDays 28java util Date  20int 29 which you use or you could go with the JodaTime to make it more cleaner

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Try this method  public static Date addDay int day            Calendar calendar   Calendar getInstance            calendar setTime new Date             calendar add Calendar DATE  day           return calendar getTime

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Construct a Calendar object and use the method add Calendar DATE  1

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In java 8 you can use java time LocalDate  LocalDate parsedDate   LocalDate parse  2015-10-30      Parse date from String LocalDate addedDate   parsedDate plusDays 1       Add one to the day field   You can convert in into java util Date object as follows   Date date   Date from addedDate atStartOfDay ZoneId systemDefault    toInstant       You can formate LocalDate into a String as follows   String str   addedDate format DateTimeFormatter ofPattern  yyyy-MM-dd

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Something like this should do the trick   String dt    2008-01-01       Start date SimpleDateFormat sdf   new SimpleDateFormat  yyyy-MM-dd    Calendar c   Calendar getInstance    c setTime sdf parse dt    c add Calendar DATE  1       number of days to add dt   sdf format c getTime         dt is now the new date

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startCalendar add Calendar DATE  1     Add 1 Day to the current Calender

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Something like this should do the trick   String dt    2008-01-01       Start date SimpleDateFormat sdf   new SimpleDateFormat  yyyy-MM-dd    Calendar c   Calendar getInstance    c setTime sdf parse dt    c add Calendar DATE  1       number of days to add dt   sdf format c getTime         dt is now the new date

User · Answer

If you are using Java 8  then do it like this   LocalDate sourceDate   LocalDate of 2017  Month MAY  27       Source Date LocalDate destDate   sourceDate plusDays 1      Adding a day to source date   DateTimeFormatter formatter   DateTimeFormatter ofPattern  yyyy-MM-dd       Setting date format  String destDate   destDate format formatter        End date   If you want to use SimpleDateFormat  then do it like this   String sourceDate    2017-05-27       Start date  SimpleDateFormat sdf   new SimpleDateFormat  yyyy-MM-dd     Calendar calendar   Calendar getInstance    calendar setTime sdf parse sourceDate       parsed date and setting to calendar  calendar add Calendar DATE  1       number of days to add String destDate   sdf format calendar getTime         End date

User · Answer

you can use Simple java util lib  Calendar cal   Calendar getInstance     cal setTime yourDate    cal add Calendar DATE  1   yourDate   cal getTime

User · Answer

In Java 8 simple way to do is   Date from Instant now   plusSeconds SECONDS PER DAY

User · Answer

Apache Commons already has this DateUtils addDays Date date  int amount      http   commons apache org proper commons-lang apidocs org apache commons lang3 time DateUtils html addDays 28java util Date  20int 29 which you use or you could go with the JodaTime to make it more cleaner

User · Answer

Java 8 added a new API for working with dates and times   With Java 8 you can use the following lines of code      parse date from yyyy-mm-dd pattern LocalDate januaryFirst   LocalDate parse  2014-01-01        add one day LocalDate januarySecond   januaryFirst plusDays 1

User · Answer

SimpleDateFormat dateFormat   new SimpleDateFormat   yyyy-MM-dd     Calendar cal   Calendar getInstance    cal setTime  dateFormat parse  inputString      cal add  Calendar DATE  1

User · Answer

Just pass date in String and number of next days     private String getNextDate String givenDate int noOfDays            SimpleDateFormat dateFormat   new SimpleDateFormat  yyyy-MM-dd            Calendar cal   Calendar getInstance            String nextDaysDate   null      try           cal setTime dateFormat parse givenDate            cal add Calendar DATE  noOfDays           nextDaysDate   dateFormat format cal getTime            catch  ParseException ex            Logger getLogger GR TravelRepublic class getName    log Level SEVERE  null  ex        finally      dateFormat   null      cal   null             return nextDaysDate

User · Answer

Use the DateFormat API to convert the String into a Date object  then use the Calendar API to add one day  Let me know if you want specific code examples  and I can update my answer

User · Answer

I prefer to use DateUtils from Apache  Check this http   commons apache org proper commons-lang javadocs api-2 6 org apache commons lang time DateUtils html  It is handy especially when you have to use it multiple places in your project and would not want to write your one liner method for this    The API says       addDays Date date  int amount    Adds a number of days to a date returning a new object    Note that it returns a new Date object and does not make changes to the previous one itself

User · Answer

If you want to add a single unit of time and you expect that other fields to be incremented as well  you can safely use add method  See example below   SimpleDateFormat simpleDateFormat1   new SimpleDateFormat  yyyy-MM-dd    Calendar cal   Calendar getInstance    cal set 1970 Calendar DECEMBER 31   System out println simpleDateFormat1 format cal getTime      cal add Calendar DATE  1   System out println simpleDateFormat1 format cal getTime      cal add Calendar DATE  -1   System out println simpleDateFormat1 format cal getTime        Will Print   1970-12-31 1971-01-01 1970-12-31

User · Answer

With Java SE 8 or higher you should use the new Date Time API  int days   7          LocalDate dateRedeemed   LocalDate now     DateTimeFormatter formatter   DateTimeFormatter ofPattern  quot dd MM YYYY quot      String newDate   dateRedeemed plusDays days  format formatter       System out println newDate    If you need to convert from java util Date to java time LocalDate  you may use this method    public LocalDate asLocalDate Date date          Instant instant   date toInstant          ZonedDateTime zdt   instant atZone ZoneId systemDefault           return zdt toLocalDate         With a version prior to Java SE 8 you may use Joda-Time  Joda-Time provides a quality replacement for the Java date and time classes and is the de facto standard date and time library for Java prior to Java SE 8     int days   7            DateTime dateRedeemed   DateTime now       DateTimeFormatter formatter   DateTimeFormat forPattern  quot dd MM uuuu quot                String newDate   dateRedeemed plusDays days  toString formatter         System out println newDate

User · Answer

startCalendar add Calendar DATE  1     Add 1 Day to the current Calender

User · Answer

Java does appear to be well behind the eight-ball compared to C   This utility method shows the way to do in Java SE 6 using the Calendar add method  presumably the only easy way    public class DateUtil       public static Date addDays Date date  int days                Calendar cal   Calendar getInstance            cal setTime date           cal add Calendar DATE  days     minus number would decrement the days         return cal getTime              To add one day  per the question asked  call it as follows   String sourceDate    2012-02-29   SimpleDateFormat format   new SimpleDateFormat  yyyy-MM-dd    Date myDate   format parse sourceDate   myDate   DateUtil addDays myDate  1

User · Answer

It s very simple  trying to explain in a simple word  get the today s date as below   Calendar calendar   Calendar getInstance    System out println calendar getTime       print today s date calendar add Calendar DATE  1     Now set one day ahead with this date by calendar add method which takes  constant  value   Here constant could be DATE  hours  min  sec etc  and value is the value of constant  Like for one day  ahead constant is Calendar DATE and its value are 1 because we want one day ahead value   System out println calendar getTime       print modified date which is tomorrow s date  Thanks

User · Answer

SimpleDateFormat dateFormat   new SimpleDateFormat   yyyy-MM-dd     Calendar cal   Calendar getInstance    cal setTime  dateFormat parse  inputString      cal add  Calendar DATE  1

User · Answer

Use the DateFormat API to convert the String into a Date object  then use the Calendar API to add one day  Let me know if you want specific code examples  and I can update my answer

User · Answer

You can use this package from  org apache commons lang3 time     SimpleDateFormat sdf   new SimpleDateFormat  yyyy-MM-dd     Date myNewDate   DateUtils addDays myDate  4    Date yesterday   DateUtils addDays myDate  -1    String formatedDate   sdf format myNewDate

User · Answer

Construct a Calendar object and use the method add Calendar DATE  1

User · Answer

It s simple actually  One day contains 86400000 milliSeconds   So first you get the current time in millis from The System by usingSystem currentTimeMillis   then add the 84000000 milliSeconds and use the Date Class to generate A date format for the milliseconds   Example   String Today   new Date System currentTimeMillis    toString     String Today will be 2019-05-9   String Tommorow   new Date System currentTimeMillis     86400000  toString     String Tommorow will be 2019-05-10  String DayAfterTommorow   new Date System currentTimeMillis      2   86400000   toString     String DayAfterTommorow will be 2019-05-11

User · Answer

Use the DateFormat API to convert the String into a Date object  then use the Calendar API to add one day  Let me know if you want specific code examples  and I can update my answer

User · Answer

Construct a Calendar object and use the method add Calendar DATE  1

User · Answer

Since Java 1 5 TimeUnit DAYS toMillis 1  looks more clean to me   SimpleDateFormat dateFormat   new SimpleDateFormat   yyyy-MM-dd     Date day   dateFormat parse string      add the day Date dayAfter   new Date day getTime     TimeUnit DAYS toMillis 1

User · Answer

Let s clarify the use case  You want to do calendar arithmetic and start end with a java util Date    Some approaches    Convert to string and back with SimpleDateFormat  This is an inefficient solution  Convert to LocalDate  You would lose any time-of-day information  Convert to LocalDateTime  This involves more steps and you need to worry about timezone  Convert to epoch with Date getTime    This is efficient but you are calculating with milliseconds    Consider using java time Instant   Date  now   new Date    Instant  instant    now toInstant   minus 5  ChronoUnit DAYS   Date  newDate   Date from  instant

User · Answer

Something like this should do the trick   String dt    2008-01-01       Start date SimpleDateFormat sdf   new SimpleDateFormat  yyyy-MM-dd    Calendar c   Calendar getInstance    c setTime sdf parse dt    c add Calendar DATE  1       number of days to add dt   sdf format c getTime         dt is now the new date

User · Answer

you can use Simple java util lib  Calendar cal   Calendar getInstance     cal setTime yourDate    cal add Calendar DATE  1   yourDate   cal getTime

User · Answer

It s very simple  trying to explain in a simple word  get the today s date as below   Calendar calendar   Calendar getInstance    System out println calendar getTime       print today s date calendar add Calendar DATE  1     Now set one day ahead with this date by calendar add method which takes  constant  value   Here constant could be DATE  hours  min  sec etc  and value is the value of constant  Like for one day  ahead constant is Calendar DATE and its value are 1 because we want one day ahead value   System out println calendar getTime       print modified date which is tomorrow s date  Thanks

User · Answer

In java 8 you can use java time LocalDate  LocalDate parsedDate   LocalDate parse  2015-10-30      Parse date from String LocalDate addedDate   parsedDate plusDays 1       Add one to the day field   You can convert in into java util Date object as follows   Date date   Date from addedDate atStartOfDay ZoneId systemDefault    toInstant       You can formate LocalDate into a String as follows   String str   addedDate format DateTimeFormatter ofPattern  yyyy-MM-dd

User · Answer

long timeadj   24 60 60 1000  Date newDate   new Date  oldDate getTime    timeadj     This takes the number of milliseconds since epoch from oldDate and adds 1 day worth of milliseconds then uses the Date   public constructor to create a date using the new value  This method allows you to add 1 day  or any number of hours minutes  not only whole days

User · Answer

Date newDate   new Date    newDate setDate newDate getDate   1   System out println newDate

User · Answer

If you want to add a single unit of time and you expect that other fields to be incremented as well  you can safely use add method  See example below   SimpleDateFormat simpleDateFormat1   new SimpleDateFormat  yyyy-MM-dd    Calendar cal   Calendar getInstance    cal set 1970 Calendar DECEMBER 31   System out println simpleDateFormat1 format cal getTime      cal add Calendar DATE  1   System out println simpleDateFormat1 format cal getTime      cal add Calendar DATE  -1   System out println simpleDateFormat1 format cal getTime        Will Print   1970-12-31 1971-01-01 1970-12-31

User · Answer

If you are using Java 8  java time LocalDate and java time format DateTimeFormatter can make this work quite simple   public String nextDate String date         LocalDate parsedDate   LocalDate parse date         LocalDate addedDate   parsedDate plusDays 1         DateTimeFormatter formatter   DateTimeFormatter ofPattern  yyyy-mm-dd          return addedDate format formatter

User · Answer

Please note that this line adds 24 hours   d1 getTime     1   24   60   60   1000   but this line adds one day  cal add  Calendar DATE  1      On days with a daylight savings time change  25 or 23 hours  you will get different results

User · Answer

Java 8 added a new API for working with dates and times   With Java 8 you can use the following lines of code      parse date from yyyy-mm-dd pattern LocalDate januaryFirst   LocalDate parse  2014-01-01        add one day LocalDate januarySecond   januaryFirst plusDays 1

User · Answer

With Java SE 8 or higher you should use the new Date Time API  int days   7          LocalDate dateRedeemed   LocalDate now     DateTimeFormatter formatter   DateTimeFormatter ofPattern  quot dd MM YYYY quot      String newDate   dateRedeemed plusDays days  format formatter       System out println newDate    If you need to convert from java util Date to java time LocalDate  you may use this method    public LocalDate asLocalDate Date date          Instant instant   date toInstant          ZonedDateTime zdt   instant atZone ZoneId systemDefault           return zdt toLocalDate         With a version prior to Java SE 8 you may use Joda-Time  Joda-Time provides a quality replacement for the Java date and time classes and is the de facto standard date and time library for Java prior to Java SE 8     int days   7            DateTime dateRedeemed   DateTime now       DateTimeFormatter formatter   DateTimeFormat forPattern  quot dd MM uuuu quot                String newDate   dateRedeemed plusDays days  toString formatter         System out println newDate

User · Answer

Construct a Calendar object and use the method add Calendar DATE  1

User · Answer

If you are using Java 8  java time LocalDate and java time format DateTimeFormatter can make this work quite simple   public String nextDate String date         LocalDate parsedDate   LocalDate parse date         LocalDate addedDate   parsedDate plusDays 1         DateTimeFormatter formatter   DateTimeFormatter ofPattern  yyyy-mm-dd          return addedDate format formatter

User · Answer

I prefer to use DateUtils from Apache  Check this http   commons apache org proper commons-lang javadocs api-2 6 org apache commons lang time DateUtils html  It is handy especially when you have to use it multiple places in your project and would not want to write your one liner method for this    The API says       addDays Date date  int amount    Adds a number of days to a date returning a new object    Note that it returns a new Date object and does not make changes to the previous one itself

User · Answer

Since Java 1 5 TimeUnit DAYS toMillis 1  looks more clean to me   SimpleDateFormat dateFormat   new SimpleDateFormat   yyyy-MM-dd     Date day   dateFormat parse string      add the day Date dayAfter   new Date day getTime     TimeUnit DAYS toMillis 1

User · Answer

java time  On Java 8 and later  the java time package makes this pretty much automatic   Tutorial   Assuming String input and output   import java time LocalDate   public class DateIncrementer     static public String addOneDay String date        return LocalDate parse date  plusDays 1  toString

User · Answer

Date today   new Date                   SimpleDateFormat formattedDate   new SimpleDateFormat  yyyyMMdd                Calendar c   Calendar getInstance            c add Calendar DATE  1       number of days to add       String tomorrow    String  formattedDate format c getTime      System out println  Tomorrows date is     tomorrow     This will give tomorrow s date  c add      parameters could be changed from 1 to another number for appropriate increment

User · Answer

SimpleDateFormat dateFormat   new SimpleDateFormat   yyyy-MM-dd     Calendar cal   Calendar getInstance    cal setTime  dateFormat parse  inputString      cal add  Calendar DATE  1

User · Answer

Use the DateFormat API to convert the String into a Date object  then use the Calendar API to add one day  Let me know if you want specific code examples  and I can update my answer

User · Answer

Take a look at Joda-Time  https   www joda org joda-time     DateTimeFormatter parser   ISODateTimeFormat date     DateTime date   parser parseDateTime dateString    String nextDay   parser print date plusDays 1

User · Answer

Take a look at Joda-Time  https   www joda org joda-time     DateTimeFormatter parser   ISODateTimeFormat date     DateTime date   parser parseDateTime dateString    String nextDay   parser print date plusDays 1

User · Answer

Date today   new Date                   SimpleDateFormat formattedDate   new SimpleDateFormat  yyyyMMdd                Calendar c   Calendar getInstance            c add Calendar DATE  1       number of days to add       String tomorrow    String  formattedDate format c getTime      System out println  Tomorrows date is     tomorrow     This will give tomorrow s date  c add      parameters could be changed from 1 to another number for appropriate increment

[java] How can I increment a date by one day in Java?

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