"Fri, 02 Jan 1970 07:28:20"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700102
Only TIME
07:28:20
General datetime
1970-01-02 07:28:20Z
For Database
1970-01-02 07:28:20
For HTTP1.1
Fri, 02 Jan 1970 07:28:20 GMT