"Mon, 19 Aug 2024 21:39:52"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240819
Only TIME
21:39:52
General datetime
2024-08-19 21:39:52Z
For Database
2024-08-19 21:39:52
For HTTP1.1
Mon, 19 Aug 2024 21:39:52 GMT