Convert Current date to integer

by

The issue is that an Integer is not large enough to store a current date, you need to use a Long.

The date is stored internally as the number of milliseconds since 1/1/1970.

The maximum Integer value is 2147483648, whereas the number of milliseconds since 1970 is currently in the order of 1345618537869

Putting the maximum integer value into a date yields Monday 26th January 1970.

Edit: Code to display division by 1000 as per comment below:

    int i = (int) (new Date().getTime()/1000);
    System.out.println("Integer : " + i);
    System.out.println("Long : "+ new Date().getTime());
    System.out.println("Long date : " + new Date(new Date().getTime()));
    System.out.println("Int Date : " + new Date(((long)i)*1000L));

Integer : 1345619256
Long : 1345619256308
Long date : Wed Aug 22 16:37:36 CST 2012
Int Date : Wed Aug 22 16:37:36 CST 2012

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. Java SimpleDateFormat(“yyyy-MM-dd’T’HH:mm:ss’Z'”) gives timezone as IST
  7. SimpleDateFormat and locale based format string
  8. Difference between java HH:mm and hh:mm on SimpleDateFormat
  9. I want to get Year, Month, Day, etc from Java Date to compare with Gregorian Calendar date in Java. Is this possible?
  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. Timezones in SQL DATE vs java.sql.Date
  17. Best way to convert Java SQL Date from yyyy-MM-dd to dd MMMM yyyy format
  18. How do I set cell value to Date and apply default Excel date format?
  19. Why can’t this SimpleDateFormat parse this date string?
  20. Convert LocalDate in DD/MM/YYYY LocalDate [duplicate]
  21. How to get year, month, day, hours, minutes, seconds and milliseconds of the current moment in Java?
  22. DateTimeParse Exception
  23. Change the format of Date Java [closed]
  24. Why is the month changed to 50 after I added 10 minutes?
  25. Getting Date in HTTP format in Java
  26. Retrieve current week’s Monday’s date
  27. java: how to mock Calendar.getInstance()?
  28. Date vs TimeStamp vs calendar?
  29. Why can’t OffsetDateTime parse ‘2016-08-24T18:38:05.507+0000’ in Java 8
  30. Get Daylight Saving Transition Dates For Time Zones in Java

Leave a Comment