"Tue, 06 Jan 1970 02:29:04"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700106
Only TIME
02:29:04
General datetime
1970-01-06 02:29:04Z
For Database
1970-01-06 02:29:04
For HTTP1.1
Tue, 06 Jan 1970 02:29:04 GMT