"Fri, 02 Jan 1970 09:18:58"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700102
Only TIME
09:18:58
General datetime
1970-01-02 09:18:58Z
For Database
1970-01-02 09:18:58
For HTTP1.1
Fri, 02 Jan 1970 09:18:58 GMT