"Mon, 19 Aug 2024 11:15:19"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240819
Only TIME
11:15:19
General datetime
2024-08-19 11:15:19Z
For Database
2024-08-19 11:15:19
For HTTP1.1
Mon, 19 Aug 2024 11:15:19 GMT