"Tue, 10 Feb 1970 00:19:51"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700210
Only TIME
00:19:51
General datetime
1970-02-10 00:19:51Z
For Database
1970-02-10 00:19:51
For HTTP1.1
Tue, 10 Feb 1970 00:19:51 GMT