"Mon, 19 Aug 2024 21:30:05"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240819
Only TIME
21:30:05
General datetime
2024-08-19 21:30:05Z
For Database
2024-08-19 21:30:05
For HTTP1.1
Mon, 19 Aug 2024 21:30:05 GMT