"Sun, 04 Jan 1970 17:10:57"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700104
Only TIME
17:10:57
General datetime
1970-01-04 17:10:57Z
For Database
1970-01-04 17:10:57
For HTTP1.1
Sun, 04 Jan 1970 17:10:57 GMT