"Mon, 09 Dec 2024 15:36:33"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241209
Only TIME
15:36:33
General datetime
2024-12-09 15:36:33Z
For Database
2024-12-09 15:36:33
For HTTP1.1
Mon, 09 Dec 2024 15:36:33 GMT