"Fri, 09 Jan 1970 00:19:33"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700109
Only TIME
00:19:33
General datetime
1970-01-09 00:19:33Z
For Database
1970-01-09 00:19:33
For HTTP1.1
Fri, 09 Jan 1970 00:19:33 GMT