Calendar time convertation

Question

Something strange happens when I am trying to convert date to a milliseconds. Maybe someone can explain my this:

 Calendar calendar = Calendar.getInstance();
 calendar.set(2017, 9, 3, 4, 50);

 SimpleDateFormat formatter = new SimpleDateFormat("yyyy.MM.dd hh:mm:ss",
     Locale.getDefault());
 Log.i("tag", formatter.format(calendar.getTime()));

and logcat logs my out:

I/tag: 2017.10.03 04:50:34

Why months are different ?

Months are zero-based in `Calendar`. – Mike M. Aug 27 '17 at 17:15 — Mike M., Aug 27 '17 at 17:15

score 2 · Accepted Answer · answered Aug 27 '17 at 17:15

2

Calendar month is zero-based (0-11) but when displayed it's in "human" version (1-12).

answered Aug 27 '17 at 17:15

Neria Nachum

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It means that I have to subtract 1 from month 9. Thanks – Armandas Barkauskas Aug 27 '17 at 17:18
Yes, 8 stands for September, 9 for October, etc. – Neria Nachum Aug 27 '17 at 17:20

score 2 · Answer 2 · answered Aug 27 '17 at 17:16

2

In the method calendar.set(), from the documentation the parameter month starts from 0.

month the value used to set the MONTH calendar field. * Month value is 0-based. e.g., 0 for January.

answered Aug 27 '17 at 17:16

Nabin Bhandari

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Calendar time convertation

2 Answers2