Getting yesterday's date through code

Question

I am using the following code to get today's date.

Calendar cal = Calendar.getInstance();
SimpleDateFormat dateFormat = new SimpleDateFormat("dd/MM/yyyy");
return dateFormat.format(cal.getTime());

But I also want yesteday's date in the same format.

I am using

        Calendar cal = Calendar.getInstance();
    SimpleDateFormat dateFormat = new SimpleDateFormat("dd/MM/yyyy");

    cal.add(Calendar.DATE, -1);
    return dateFormat.format(cal.getTime());

but I have a feeling that this will fail once the month or year changes. How do I solve this. Help is very welcome.

lol why do you get this feeling ? Don't you trust the android api's ? — Reno, Feb 26 '11 at 16:38
I am very new here. Dont know what will work and what will not. — Ash S, Feb 27 '11 at 00:08

score 8 · Answer 1 · answered Feb 26 '11 at 17:11

8

I'd do like this:

Date d = new Date(System.currentTimeMillis() - (1000 * 60 * 60 * 24));
SimpleDateFormat sdf = new SimpleDateFormat("dd/MM/yyyy");
return sdf.format(d);

answered Feb 26 '11 at 17:11

Fredrik Wallenius

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score 2 · Answer 2 · answered Feb 26 '11 at 16:36

2

How about subtracting a day worth of seconds from the timestamp?

answered Feb 26 '11 at 16:36

Ashfame

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Shekhar_Pro · Accepted Answer · 2011-02-26T16:42:26.700

1

I dont' think so .. what ever the date is, it should get it and subtract it.. and return the date of day before. That is what that function is ment to do

edited Feb 26 '11 at 16:42

answered Feb 26 '11 at 16:37

Shekhar_Pro

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I checked the android developer docs and I think you are correct! – Ash S Feb 26 '11 at 17:11

score 0 · Answer 4 · answered Jun 15 '15 at 03:28

0

I get a previous day of specific day by this way:

cal.set(year, month , day);
long lastDay = cal.getTimeInMillis() - (24 * 60 * 60 * 1000);
cal.setTimeInMillis(lastDay);

Hope this help!

answered Jun 15 '15 at 03:28

Huy Hóm Hỉnh

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Getting yesterday's date through code

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