"Tue, 10 Feb 1970 07:54:29"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700210
Only TIME
07:54:29
General datetime
1970-02-10 07:54:29Z
For Database
1970-02-10 07:54:29
For HTTP1.1
Tue, 10 Feb 1970 07:54:29 GMT