"Mon, 09 Dec 2024 21:47:15"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241209
Only TIME
21:47:15
General datetime
2024-12-09 21:47:15Z
For Database
2024-12-09 21:47:15
For HTTP1.1
Mon, 09 Dec 2024 21:47:15 GMT