"Wed, 14 Jan 1970 11:25:47"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700114
Only TIME
11:25:47
General datetime
1970-01-14 11:25:47Z
For Database
1970-01-14 11:25:47
For HTTP1.1
Wed, 14 Jan 1970 11:25:47 GMT