"Tue, 06 Jan 1970 19:42:58"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700106
Only TIME
19:42:58
General datetime
1970-01-06 19:42:58Z
For Database
1970-01-06 19:42:58
For HTTP1.1
Tue, 06 Jan 1970 19:42:58 GMT