"Mon, 05 Jan 1970 00:55:07"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700105
Only TIME
00:55:07
General datetime
1970-01-05 00:55:07Z
For Database
1970-01-05 00:55:07
For HTTP1.1
Mon, 05 Jan 1970 00:55:07 GMT