"Thu, 29 Jan 1970 00:19:41"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700129
Only TIME
00:19:41
General datetime
1970-01-29 00:19:41Z
For Database
1970-01-29 00:19:41
For HTTP1.1
Thu, 29 Jan 1970 00:19:41 GMT