"Mon, 19 Aug 2024 13:45:42"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240819
Only TIME
13:45:42
General datetime
2024-08-19 13:45:42Z
For Database
2024-08-19 13:45:42
For HTTP1.1
Mon, 19 Aug 2024 13:45:42 GMT