On Sun, Nov 23, 2003 at 03:42:58PM -0000, Shaun wrote:
: 
: Given the time range: 09:15 - 17:30 how can I tell how many 15 minute
: intervals occur between these two times? Obviously here I can work it out,
: but I need a calculation that will perform the maths for any two time
: ranges...

        $time1 = '09:15';
        $time2 = '17:30';
        $intervals = floor((strtotime($time2) - strtotime($time1)) / 900);

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