"Fri, 02 Jan 1970 11:02:25"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700102
Only TIME
11:02:25
General datetime
1970-01-02 11:02:25Z
For Database
1970-01-02 11:02:25
For HTTP1.1
Fri, 02 Jan 1970 11:02:25 GMT