"Thu, 26 Feb 1970 00:19:41"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700226
Only TIME
00:19:41
General datetime
1970-02-26 00:19:41Z
For Database
1970-02-26 00:19:41
For HTTP1.1
Thu, 26 Feb 1970 00:19:41 GMT