"Sun, 04 Jan 1970 01:27:58"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700104
Only TIME
01:27:58
General datetime
1970-01-04 01:27:58Z
For Database
1970-01-04 01:27:58
For HTTP1.1
Sun, 04 Jan 1970 01:27:58 GMT