"Mon, 09 Dec 2024 20:15:12"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241209
Only TIME
20:15:12
General datetime
2024-12-09 20:15:12Z
For Database
2024-12-09 20:15:12
For HTTP1.1
Mon, 09 Dec 2024 20:15:12 GMT