"Tue, 06 Jan 1970 14:24:25"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700106
Only TIME
14:24:25
General datetime
1970-01-06 14:24:25Z
For Database
1970-01-06 14:24:25
For HTTP1.1
Tue, 06 Jan 1970 14:24:25 GMT