"Wed, 07 Jan 1970 04:34:53"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700107
Only TIME
04:34:53
General datetime
1970-01-07 04:34:53Z
For Database
1970-01-07 04:34:53
For HTTP1.1
Wed, 07 Jan 1970 04:34:53 GMT