"Fri, 02 Jan 1970 07:38:34"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700102
Only TIME
07:38:34
General datetime
1970-01-02 07:38:34Z
For Database
1970-01-02 07:38:34
For HTTP1.1
Fri, 02 Jan 1970 07:38:34 GMT