"Fri, 02 Jan 1970 14:01:32"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700102
Only TIME
14:01:32
General datetime
1970-01-02 14:01:32Z
For Database
1970-01-02 14:01:32
For HTTP1.1
Fri, 02 Jan 1970 14:01:32 GMT