"Sat, 10 Jan 1970 09:59:10"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700110
Only TIME
09:59:10
General datetime
1970-01-10 09:59:10Z
For Database
1970-01-10 09:59:10
For HTTP1.1
Sat, 10 Jan 1970 09:59:10 GMT