"Tue, 13 Jan 1970 10:01:19"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700113
Only TIME
10:01:19
General datetime
1970-01-13 10:01:19Z
For Database
1970-01-13 10:01:19
For HTTP1.1
Tue, 13 Jan 1970 10:01:19 GMT