"Mon, 19 Aug 2024 19:20:16"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240819
Only TIME
19:20:16
General datetime
2024-08-19 19:20:16Z
For Database
2024-08-19 19:20:16
For HTTP1.1
Mon, 19 Aug 2024 19:20:16 GMT