"Mon, 21 Oct 2024 21:43:59"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241021
Only TIME
21:43:59
General datetime
2024-10-21 21:43:59Z
For Database
2024-10-21 21:43:59
For HTTP1.1
Mon, 21 Oct 2024 21:43:59 GMT