How to subtract X day from a Date object in Java

Question

I want to do something like   Date date   new Date       current date date   date - 300     substract 300 days from current date and I want to use this  date    How to do it

User · Answer

In Java 8 you can do this  Instant inst   Instant parse  quot 2018-12-30T19 34 50 63Z quot         subtract 10 Days to Instant  Instant value   inst minus Period ofDays 10        print result  System out println  quot Instant after subtracting Days   quot    value

User · Answer

As you can see HERE there is a lot of manipulation you can do  Here an example showing what you could do   DateFormat dateFormat   new SimpleDateFormat  yyyy MM dd HH mm ss    Calendar cal   Calendar getInstance       Add one day to current date  cal add Calendar DATE  1   System out println dateFormat format cal getTime         Substract one day to current date  cal   Calendar getInstance    cal add Calendar DATE  -1   System out println dateFormat format cal getTime          Can be Calendar DATE or    Calendar MONTH  Calendar YEAR  Calendar HOUR  Calendar SECOND

User · Answer

Java 8 Time API   Instant now   Instant now      current date Instant before   now minus Duration ofDays 300    Date dateBefore   Date from before

User · Answer

You can easily subtract with calendar with SimpleDateFormat   public static String subtractDate String time int subtractDay  throws ParseException             Calendar cal   Calendar getInstance            SimpleDateFormat sdf   new SimpleDateFormat  yyyy-MM-dd HH mm   Locale ENGLISH           cal setTime sdf parse time            cal add Calendar DATE -subtractDay           String wantedDate   sdf format cal getTime              Log d  tag  wantedDate           return wantedDate

User · Answer

Simply use this to get date before 300 days  replace 300 with your days  Date date   new Date       Or where ever you get it from Date daysAgo   new DateTime date  minusDays 300  toDate     Here  DateTime is org joda time DateTime  Date is java util Date

User · Answer

Java 8 and later  With Java 8 s date time API change  Use LocalDate  LocalDate date   LocalDate now   minusDays 300     Similarly you can have  LocalDate date   someLocalDateInstance minusDays 300     Refer to https   stackoverflow com a 23885950 260990 for translation between java util Date  lt --  java time LocalDateTime  Date in   new Date    LocalDateTime ldt   LocalDateTime ofInstant in toInstant    ZoneId systemDefault     Date out   Date from ldt atZone ZoneId systemDefault    toInstant       Java 7 and earlier  Use Calendar s add   method  Calendar cal   Calendar getInstance    cal setTime dateInstance   cal add Calendar DATE  -30   Date dateBefore30Days   cal getTime

User · Answer

With Java 8 it s really simple now    LocalDate date   LocalDate now   minusDays 300     A great guide to the new api can be found here

User · Answer

You may also be able to use the Duration class  E g  Date currentDate   new Date    Date oneDayFromCurrentDate   new Date currentDate getTime   - Duration ofDays 1  toMillis

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c1 set 2017  12   01     Ex  1999 jan 20      System out println  Date is       sdf format c1 getTime        c1 add Calendar MONTH  -2      substract 1 month   System out println     Date minus 1 month             sdf format c1 getTime

User · Answer

I have created a function to make the task easier    For 7 days after dateString  dateCalculate dateString  yyyy-MM-dd  7   To get 7 days upto dateString  dateCalculate dateString  yyyy-MM-dd  -7       public static String dateCalculate String dateString  String dateFormat  int days        Calendar cal   Calendar getInstance        SimpleDateFormat s   new SimpleDateFormat dateFormat       try           cal setTime s parse dateString          catch  ParseException e            e printStackTrace              cal add Calendar DATE  days       return s format cal getTime

User · Answer

JigarJoshi it s the good answer  and of course also  Tim recommendation to use  joda-time    I only want to add more possibilities to subtract days from a java util Date   Apache-commons  One possibility is to use apache-commons-lang  You can do it using DateUtils as follows   Date dateBefore30Days   DateUtils addDays new Date   -30     Of course add the commons-lang dependency to do only date subtract it s probably not a good options  however if you re already using commons-lang it s a good choice  There is also convenient methods to addYears addMonths addWeeks and so on  take a look at the api here   Java 8  Another possibility is to take advantage of new LocalDate from Java 8 using minusDays long days  method   LocalDate dateBefore30Days   LocalDate now ZoneId of  Europe Paris    minusDays 30

[java] How to subtract X day from a Date object in Java?

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