"Mon, 09 Dec 2024 03:49:15"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241209
Only TIME
03:49:15
General datetime
2024-12-09 03:49:15Z
For Database
2024-12-09 03:49:15
For HTTP1.1
Mon, 09 Dec 2024 03:49:15 GMT