My understanding is America/Los_Angeles is PDT timezone, which is 8 hours behind Zulu time, but when I run this in PHP, it seems to suggest it is -7. Could anyone help me understand what the problem is?
=date_default_timezone_get()
"America/Los_Angeles"
=strtotime('2017-03-16T06:00:00Z')
1489644000
=date('r', strtotime('2017-03-16T06:00:00Z'))
"Wed, 15 Mar 2017 23:00:00 -0700"