"Mon, 12 Aug 2024 15:15:03"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240812
Only TIME
15:15:03
General datetime
2024-08-12 15:15:03Z
For Database
2024-08-12 15:15:03
For HTTP1.1
Mon, 12 Aug 2024 15:15:03 GMT