Converting an epoch timesramp to a formatted date string in php

Question

I am attempting to convert an epoch timestamp value to a formatted date string in PHP and getting unexpected results:

$dateStart = 1104555600000;
$formattedDate = date('Y-m-d', $dateStart);

Expected Result: 2005-01-01   
Actual Result: 1993-09-26

1104555600000 is equivalent to 2005-01-01

However, $formattedDate ends up being 1993-09-26

Whats the source of the epoch? `1104555600000` looks like too many zeros. `echo strtotime( '2005-01-01' );` produces `1104566400` on my system. — MonkeyZeus, Mar 30 '18 at 16:37
What @JosephSzymborski said, try removing the three trailing digits or divide it by 1,000. — MonkeyZeus, Mar 30 '18 at 16:40
@MonkeyZeus that comment was before you edit your comment ;) — am05mhz, Mar 30 '18 at 16:43

score 2 · Accepted Answer · answered Mar 30 '18 at 16:41

2

Actually you epoch timestamp is in millisecond, convert it to second and then convert it to date

<?php

$dateStart = 1104555600000;
echo $formattedDate = date('Y-m-d', $dateStart/1000);

answered Mar 30 '18 at 16:41

how come the divided by 1000 is not working when passing an epoch timestamp such as: 4307486400000 which should be year 2160? Instead it is converting to year 1970. – Blake Rivell Apr 05 '18 at 18:18

1 Answers1