"Fri, 20 Dec 2024 14:15:12"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241220
Only TIME
14:15:12
General datetime
2024-12-20 14:15:12Z
For Database
2024-12-20 14:15:12
For HTTP1.1
Fri, 20 Dec 2024 14:15:12 GMT