"Tue, 24 Feb 1970 00:19:07"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700224
Only TIME
00:19:07
General datetime
1970-02-24 00:19:07Z
For Database
1970-02-24 00:19:07
For HTTP1.1
Tue, 24 Feb 1970 00:19:07 GMT