Changing Java Date one hour back

by

java.util.Calendar

Calendar cal = Calendar.getInstance();
// remove next line if you're always using the current time.
cal.setTime(currentDate);
cal.add(Calendar.HOUR, -1);
Date oneHourBack = cal.getTime();

java.util.Date

new Date(System.currentTimeMillis() - 3600 * 1000);

org.joda.time.LocalDateTime

new LocalDateTime().minusHours(1)

Java 8: java.time.LocalDateTime

LocalDateTime.now().minusHours(1)

Java 8 java.time.Instant

// always in UTC if not timezone set
Instant.now().minus(1, ChronoUnit.HOURS));
// with timezone, Europe/Berlin for example
Instant.now()
       .atZone(ZoneId.of("Europe/Berlin"))
       .minusHours(1));

More Related Contents:

  1. How to format java.util.Date with DateTimeFormatter portable?
  2. Sort ArrayList of custom Objects by property
  3. Calculating the difference between two Java date instances
  4. How can I increment a date by one day in Java?
  5. Android/Java – Date Difference in days
  6. How to parse date string to Date? [duplicate]
  7. Java SimpleDateFormat(“yyyy-MM-dd’T’HH:mm:ss’Z'”) gives timezone as IST
  8. SimpleDateFormat and locale based format string
  9. Difference between java HH:mm and hh:mm on SimpleDateFormat
  10. Calendar returns date in wrong time zone
  11. How to convert String to Date without knowing the format?
  12. How to subtract X day from a Date object in Java?
  13. Get yesterday’s date using Date [duplicate]
  14. Get integer value of the current year in Java
  15. Convert java.time.Instant to java.sql.Timestamp without Zone offset
  16. Best way to convert Java SQL Date from yyyy-MM-dd to dd MMMM yyyy format
  17. How to format date string in java? [duplicate]
  18. What is the default timezone in java.util.Date
  19. Getting the current time millis from device and converting it into a new date with different timezone [duplicate]
  20. Convert LocalDate in DD/MM/YYYY LocalDate [duplicate]
  21. Android Days between two dates
  22. How do I get difference between two dates in android?, tried every thing and post
  23. Converting a Date object to a calendar object [duplicate]
  24. Is there a date format to display the day of the week in java?
  25. Java 8 LocalDate – How do I get all dates between two dates?
  26. Retrieve current week’s Monday’s date
  27. Java getHours(), getMinutes() and getSeconds()
  28. When are API methods marked “deprecated” actually going to go away?
  29. java get the first date and last date of given month and given year [duplicate]
  30. How to save and retrieve Date in SharedPreferences

Leave a Comment