"Mon, 19 Aug 2024 11:20:03"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240819
Only TIME
11:20:03
General datetime
2024-08-19 11:20:03Z
For Database
2024-08-19 11:20:03
For HTTP1.1
Mon, 19 Aug 2024 11:20:03 GMT