"Fri, 27 Feb 1970 07:13:13"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700227
Only TIME
07:13:13
General datetime
1970-02-27 07:13:13Z
For Database
1970-02-27 07:13:13
For HTTP1.1
Fri, 27 Feb 1970 07:13:13 GMT