"Mon, 19 Aug 2024 21:22:18"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240819
Only TIME
21:22:18
General datetime
2024-08-19 21:22:18Z
For Database
2024-08-19 21:22:18
For HTTP1.1
Mon, 19 Aug 2024 21:22:18 GMT