"Mon, 19 Aug 2024 20:12:18"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240819
Only TIME
20:12:18
General datetime
2024-08-19 20:12:18Z
For Database
2024-08-19 20:12:18
For HTTP1.1
Mon, 19 Aug 2024 20:12:18 GMT