strtotime returns 00:00 for 7am

Hi all I'm new to this list. I hope this hasn't been discussed already. using this code: function test_time($time_string) { echo strftime("%X %A, %b %e\n", strtotime($time_string)); } test_time('now'); test_time('4pm + 2 Hours'); test_time('now + 2 fortnights'); test_time('last Monday'); test_time('tomorrow'); test_time('5am tomorrow'); test_time('7am 12 days ago'); gives this output: 21:46:18 Wednesday, Jun 20 18:00:00 Wednesday, Jun 20 21:46:18 Wednesday, Jul 18 00:00:00 Monday, Jun 18 00:00:00 Thursday, Jun 21 00:00:00 Thursday, Jun 21 07:00:00 Friday, Jun 8 I'm wondering why the 2nd and 3rd last both give 00:00 as the time. Especially why 5am tomorrow doesn't work. Using PHP5. Thanks Phil P.