"Fri, 02 Jan 1970 11:04:18"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700102
Only TIME
11:04:18
General datetime
1970-01-02 11:04:18Z
For Database
1970-01-02 11:04:18
For HTTP1.1
Fri, 02 Jan 1970 11:04:18 GMT