"Thu, 01 Jan 1970 07:52:00"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700101
Only TIME
07:52:00
General datetime
1970-01-01 07:52:00Z
For Database
1970-01-01 07:52:00
For HTTP1.1
Thu, 01 Jan 1970 07:52:00 GMT