How to know if a Date is within the same day of other date

Question

If I have a two Dates in Java (Android) (Date1 and Date2), how can I know if the Date2 is within the same day of the Date1? (Note: not if the Date2-Date1 < 24 hours). Some examples (suppousing same month and year)

 Date1: day=14 hour=00:00           Date2: day=14 hour=00:00    --> Result TRUE
 Date1: day=13 hour=23:59           Date2: day=14 hour=00:00    --> Result FALSE
 Date1: day=14 hour=05:00           Date2: day=14 hour=00:00    --> Result TRUE
 Date1: day=14 hour=00:00           Date2: day=15 hour=00:00    --> Result FALSE

Thanks

Shouldn't your second example also return true? – Jared Apr 27 '12 at 18:52 — Jared, Apr 27 '12 at 18:52
I'm guessing `Date2: day=15...` is intended. – Sam Apr 27 '12 at 18:53 — Sam, Apr 27 '12 at 18:53

Arif Nadeem · Accepted Answer · 2017-02-02T11:57:41.577

11

Why don't you use DateUtils?

You can directly invoke methods like isSameDay

if (DateUtils.isSameDay(date1, date2)) {
    System.out.println("Same Date");
} else if (date1.before(date2)) {
    System.out.println("date1 before date2");
} else {
    System.out.println("date1 after date2");
}

Check Apache DateUtils.

edited Feb 02 '17 at 11:57

answered Apr 27 '12 at 19:01

Arif Nadeem

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Not that this solution doesn't respect the timezone – martyglaubitz May 20 '15 at 16:01

score 4 · Answer 2 · edited May 23 '17 at 12:01

4

I copied this from Java: comparing two Dates to see if they are in the same day

Calendar cal1 = Calendar.getInstance();
Calendar cal2 = Calendar.getInstance();
cal1.setTime(date1);
cal2.setTime(date2);
boolean sameDay = cal1.get(Calendar.YEAR) == cal2.get(Calendar.YEAR) &&
                  cal1.get(Calendar.DAY_OF_YEAR) == cal2.get(Calendar.DAY_OF_YEAR);

edited May 23 '17 at 12:01

Community

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answered Apr 27 '12 at 18:53

Sam

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How to know if a Date is within the same day of other date

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