"Wed, 14 Jan 1970 14:25:17"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700114
Only TIME
14:25:17
General datetime
1970-01-14 14:25:17Z
For Database
1970-01-14 14:25:17
For HTTP1.1
Wed, 14 Jan 1970 14:25:17 GMT