"Sun, 25 Jan 1970 11:04:47"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700125
Only TIME
11:04:47
General datetime
1970-01-25 11:04:47Z
For Database
1970-01-25 11:04:47
For HTTP1.1
Sun, 25 Jan 1970 11:04:47 GMT