"Sat, 14 Dec 2024 09:21:16"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241214
Only TIME
09:21:16
General datetime
2024-12-14 09:21:16Z
For Database
2024-12-14 09:21:16
For HTTP1.1
Sat, 14 Dec 2024 09:21:16 GMT