Java simple Timestamp to Date conversion

Question

I've been trying to find the answer to this for a while today and there's just so much contradictory information....

What I'd like to do is get a current unix timestamp in android, and then convert it to a format that allows me to getHours() and getMinutes().

I'm currently doing this:

int time = (int) (System.currentTimeMillis()); Timestamp ts = new Timestamp(time); mHour = ts.getHours(); mMinute = ts.getMinutes();

But it's not giving me a correct value for hour or minute (it's returning 03:38 for the current East-coast time of 13:33).

Paul Burke · Accepted Answer · 2010-09-07 18:01:06Z

9

This works:

final Calendar cal = Calendar.getInstance(); cal.setTimeInMillis(System.currentTimeMillis()); Date date = cal.getTime(); mHour = date.getHours(); mMinute = date.getMinutes();

answered Sep 7, 2010 at 18:01

Paul Burke

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3 Comments

Tom G Over a year ago

Doing this returns a time of 07:00. Is it just that my device's system time is screwed up?

Tom G Over a year ago

OK, got it. I was storing the timestamp in an int, when it really has to be a Long. Thanks guys

Lior Iluz Over a year ago

date.getHours, date.getMinutes, etc.. are deprecated in Android. Use @mbaird's answer

Mark B · Accepted Answer · 2010-09-07 17:46:45Z

Just use the Java Calendar class.

Calendar c = new GregorianCalendar(); // This creates a Calendar instance with the current time mHour = c.get(Calendar.HOUR); mMinute = c.get(Calendar.MINUTE);

Also note that your Android emulator will return times in GMT for the current time. I advise testing this type of code on a real device.

felix fan · Accepted Answer · 2013-01-05 10:11:01Z

int time = (int) (System.currentTimeMillis());

here you should use long instead of int.

Gelldur · Accepted Answer · 2013-01-06 22:26:10Z

Use Time class form Google it is the best for this kind of job specialy it has good performance not like Calendar.

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