"Sat, 10 Jan 1970 12:34:46"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700110
Only TIME
12:34:46
General datetime
1970-01-10 12:34:46Z
For Database
1970-01-10 12:34:46
For HTTP1.1
Sat, 10 Jan 1970 12:34:46 GMT