"Thu, 29 Jan 1970 14:46:16"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700129
Only TIME
14:46:16
General datetime
1970-01-29 14:46:16Z
For Database
1970-01-29 14:46:16
For HTTP1.1
Thu, 29 Jan 1970 14:46:16 GMT