"Fri, 16 Jan 1970 23:30:41"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700116
Only TIME
23:30:41
General datetime
1970-01-16 23:30:41Z
For Database
1970-01-16 23:30:41
For HTTP1.1
Fri, 16 Jan 1970 23:30:41 GMT