Timestamp to Date not correct in java

Question

I am trying to convert the timestamp to date in java but I got an old date

Result Tue Jan 20 06:13:12 IST 1970

Expected:

Here is my code

   public static void main(String args[]){    
            Date date=new Date(1644192000);  
            System.out.println(date);                     
    }

score 6 · Accepted Answer · answered Feb 09 '22 at 17:20

6

The Date class is mostly obsolete except for backwards compatibility. Instead, use the modern java.time classes:

Instant timestamp = Instant.ofEpochSecond(1644192000);
// note the second/millis difference Rob Spoor mentioned

answered Feb 09 '22 at 17:20

chrylis -cautiouslyoptimistic-

72,004
20
117
147

score 5 · Answer 2 · answered Feb 09 '22 at 17:16

5

In Java, timestamps are in milliseconds. On Unix, they are in seconds. Try adding 3 zeroes to your Java timestamp (and let it end with L to indicate it's a long, not an int) and you should get the same result.

answered Feb 09 '22 at 17:16

Rob Spoor

2,775
1
15
16

2

An expression like `TimeUnit.SECONDS.toMillis(val)` could make this conversion explicit. – erickson Feb 09 '22 at 17:20
3

@erickson And not using `Date` would make it unnecessary. – chrylis -cautiouslyoptimistic- Feb 09 '22 at 17:21

Timestamp to Date not correct in java

2 Answers2