How to check if the timestamp is current date's timestamp

Question

I have a scheduler that needs to check if the incoming timestamp is current day's timestamp.

The incoming timestamp will be of the format Eg:1384956395.

How to check this in java? Please help. I am not using Joda

Are you using joda time? – Oskar Kjellin Nov 20 '13 at 14:12 — Oskar Kjellin, Nov 20 '13 at 14:12
http://stackoverflow.com/a/1439792/1366360 – mdolbin Nov 20 '13 at 14:13 — mdolbin, Nov 20 '13 at 14:13

Dodd10x · Answer 1 · 2018-08-20T21:16:16.407

8

The epoch you posted is in seconds. Java uses milliseconds so you have to convert it and then compare the two.

long epochInMillis = epoch * 1000;
Calendar now = Calendar.getInstance();
Calendar timeToCheck = Calendar.getInstance();
timeToCheck.setTimeInMillis(epochInMillis);

if(now.get(Calendar.YEAR) == timeToCheck.get(Calendar.YEAR)) {
    if(now.get(Calendar.DAY_OF_YEAR) == timeToCheck.get(Calendar.DAY_OF_YEAR)) {
    }
}

You can also change the time zone if you do not want to use the default, in case the input epoch is in a different time zone.

edited Aug 20 '18 at 21:16

answered Nov 20 '13 at 14:32

Dodd10x

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Works for me, tnx! I appreciate answers with working code like that easy to test and to import! [btw, you miss a ")" on second if ;)] – Andrea Girardi Aug 15 '14 at 13:23

score 0 · Answer 2 · answered Nov 20 '13 at 14:21

Assuming that your timestamp was created via System.currentTimeMillis() (or any other compatible mechanism), you can do the following:

Create a Calendar instances and set the hour, minute, second and millisecond fields to zero. This is today at 0:00:00,0.
Clone the instance and add 1 day. You'll get tomorrow at 0:00:00,0.
Now check if your timestamp is in the range between today.getTime() (inclusive) and tomorrow.getTime() (exclusive).

How to check if the timestamp is current date's timestamp

2 Answers2