"Sat, 10 Jan 1970 05:50:32"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700110
Only TIME
05:50:32
General datetime
1970-01-10 05:50:32Z
For Database
1970-01-10 05:50:32
For HTTP1.1
Sat, 10 Jan 1970 05:50:32 GMT