"Mon, 19 Aug 2024 21:43:57"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240819
Only TIME
21:43:57
General datetime
2024-08-19 21:43:57Z
For Database
2024-08-19 21:43:57
For HTTP1.1
Mon, 19 Aug 2024 21:43:57 GMT