PHP Get hour difference in datetime

Question

so I have these two time stamps in PHP

1253339331 1253338959

I want to be able to somehow get the hour difference between those to datetimes. Our users should only have 24 hours to login after their first attempt, so I need to find out if it's less than 24 hours to allow them to login again.

Zed · Accepted Answer · 2009-09-19 05:59:55Z

6

if ((t2-t1)/3600) < 24 { ... }

answered Sep 19, 2009 at 5:59

Zed

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Salman Arshad · Accepted Answer · 2009-09-19 05:58:34Z

3

( 1253339331 - 1253338959 ) / ( 60 * 60 )

This will give you number of hours between the two timestamps.

answered Sep 19, 2009 at 5:58

Salman Arshad

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2 Comments

Justin Johnson Over a year ago

That's the number of minutes.

mob Over a year ago

No, 60*60 is the number of seconds in an hour

Mark Rushakoff · Accepted Answer · 2009-09-19 05:58:46Z

Those times are just seconds since Jan 1 1970 (see Unix Time); you can just subtract the two, then divide by (60 sec/min * 60 min/hr) to convert the seconds to hours.

So in your case, the times were only (1253339331-1253338959)/3600 = 0.1 hours apart.

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