"Tue, 06 Jan 1970 17:11:28"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700106
Only TIME
17:11:28
General datetime
1970-01-06 17:11:28Z
For Database
1970-01-06 17:11:28
For HTTP1.1
Tue, 06 Jan 1970 17:11:28 GMT