"Mon, 21 Oct 2024 15:30:12"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241021
Only TIME
15:30:12
General datetime
2024-10-21 15:30:12Z
For Database
2024-10-21 15:30:12
For HTTP1.1
Mon, 21 Oct 2024 15:30:12 GMT