"Fri, 05 Jun 1970 07:11:13"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700605
Only TIME
07:11:13
General datetime
1970-06-05 07:11:13Z
For Database
1970-06-05 07:11:13
For HTTP1.1
Fri, 05 Jun 1970 07:11:13 GMT