"Tue, 24 Feb 1970 00:19:11"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700224
Only TIME
00:19:11
General datetime
1970-02-24 00:19:11Z
For Database
1970-02-24 00:19:11
For HTTP1.1
Tue, 24 Feb 1970 00:19:11 GMT