"Fri, 16 Jan 1970 03:43:54"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700116
Only TIME
03:43:54
General datetime
1970-01-16 03:43:54Z
For Database
1970-01-16 03:43:54
For HTTP1.1
Fri, 16 Jan 1970 03:43:54 GMT