"Mon, 19 Aug 2024 20:12:23"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240819
Only TIME
20:12:23
General datetime
2024-08-19 20:12:23Z
For Database
2024-08-19 20:12:23
For HTTP1.1
Mon, 19 Aug 2024 20:12:23 GMT