"Mon, 19 Jan 1970 05:54:26"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700119
Only TIME
05:54:26
General datetime
1970-01-19 05:54:26Z
For Database
1970-01-19 05:54:26
For HTTP1.1
Mon, 19 Jan 1970 05:54:26 GMT