"Fri, 30 Jan 1970 14:56:36"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700130
Only TIME
14:56:36
General datetime
1970-01-30 14:56:36Z
For Database
1970-01-30 14:56:36
For HTTP1.1
Fri, 30 Jan 1970 14:56:36 GMT