"Fri, 30 Jan 1970 00:19:23"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700130
Only TIME
00:19:23
General datetime
1970-01-30 00:19:23Z
For Database
1970-01-30 00:19:23
For HTTP1.1
Fri, 30 Jan 1970 00:19:23 GMT