Convert days from gmdate() into hours?

Question

How may I turn days from the gmdate(); into hours?

gmdate("d H:i:s", '115932'); // 02 08:12:12

What I want to return is 56:12:12

gmdate("H:i:s", '115932'); // 08:12:12

EDIT: To clarify, I just want to convert a numeric string into the H:i:s format.

`gmdate` is to be used to work with dates, not with intervals. — zerkms, Aug 03 '14 at 07:56
OP it would be nice if you could chime in and tell us what you are really after. — Mark Miller, Aug 03 '14 at 08:41
Take a string that is a number in seconds, and convert it to the H:i:s format. You were spot on. — ditto, Aug 03 '14 at 08:45

Ties · Answer 1 · 2014-08-03T10:26:29.693

2

Extract the hours, minutes and seconds, like this:

$time = 115932;
$mins = $time % 3600;
$secs = $mins % 60;
$hours = ($time - $mins) / 3600;
$mins = ($mins - $secs) / 60;
echo $hours . ':' . (($mins < 10 ) ? '0' : '') . $mins . ':'  . (($secs < 10 ) ? '0' : '') . $secs;
// Or like this
vprintf('%02d:%02d:%02d',$hours,$mins,$secs);

edited Aug 03 '14 at 10:26

answered Aug 03 '14 at 08:01

Ties

5,726
3
28
37

What if there is a daylight saving time change? – hek2mgl Aug 03 '14 at 08:02
Does it apply to time intervals? – Ties Aug 03 '14 at 08:05
Yes, because it would be 1 hour more or less then. – hek2mgl Aug 03 '14 at 08:05
I skipped the whole date parsing... i asume he just wants to convert seconds into a more readable format. – Ties Aug 03 '14 at 08:18
No, OP wants the time in hours, minutes, seconds from the start of the month. – hek2mgl Aug 03 '14 at 08:20
@hek2mgl: daylight saving time has nothing to do with intervals, +1d – zerkms Aug 03 '14 at 08:21
@hek2mgl: "from the start of the month" --- uhm, why do you think so? – zerkms Aug 03 '14 at 08:21
@zerkms It has indeed something to do with. Isn't this obvious? – hek2mgl Aug 03 '14 at 08:22
@zerkms Because the formatter `d` in `gmdate()` contains the number of days from the start of the month – hek2mgl Aug 03 '14 at 08:22
@hek2mgl: obvious?? I see that OP needs to format an interval specified into hours:minutes:seconds. – zerkms Aug 03 '14 at 08:22
@hek2mgl: in this case `d` is just number of days in a given interval in seconds. OP just misused the `gmdate` – zerkms Aug 03 '14 at 08:23
Let us [continue this discussion in chat](http://chat.stackoverflow.com/rooms/58565/discussion-between-hek2mgl-and-zerkms). – hek2mgl Aug 03 '14 at 08:24

Mark Miller · Accepted Answer · 2014-08-03T08:35:57.323

2

To convert days d to hours, just multiply by by 24. Then add hours H.

Try this,

$date = '115932';

$minsec = gmdate("i:s", $date); 
$hours = gmdate("d", $date)*24 + gmdate("H", $date);

$time = $hours . ':' . $minsec; // 56:12:12

See demo

edited Aug 03 '14 at 08:35

answered Aug 03 '14 at 08:10

Mark Miller

7,442
2
16
22

This will not work if the daylight saving time changes in that interval. Meaning it is bogus during two months per year. – hek2mgl Aug 03 '14 at 08:14
@hek2mgl I believe you, and will delete my answer if it's wrong, but can you explain a little more? My answer simply converts days to hours. How would daylight savings cause a bug? – Mark Miller Aug 03 '14 at 08:20
the number of seconds doesn't match the end time... try `$date = 100` you'll get 24:01:40 because as @hek2mgl was trying to say gmdate is for parsing dates not intervals... So I'm not sure why this is the correct answer. Plus it doesn't work that well with `$date > 31 days` – Ties Aug 03 '14 at 10:40
with duration = 3000 seconds you output will be: 24:50:00 – user2988257 Sep 29 '20 at 10:45

Convert days from gmdate() into hours?

2 Answers2

Linked