"Fri, 16 Jan 1970 12:33:32"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700116
Only TIME
12:33:32
General datetime
1970-01-16 12:33:32Z
For Database
1970-01-16 12:33:32
For HTTP1.1
Fri, 16 Jan 1970 12:33:32 GMT