"Tue, 06 Jan 1970 05:56:09"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700106
Only TIME
05:56:09
General datetime
1970-01-06 05:56:09Z
For Database
1970-01-06 05:56:09
For HTTP1.1
Tue, 06 Jan 1970 05:56:09 GMT