"Fri, 20 Dec 2024 09:21:20"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241220
Only TIME
09:21:20
General datetime
2024-12-20 09:21:20Z
For Database
2024-12-20 09:21:20
For HTTP1.1
Fri, 20 Dec 2024 09:21:20 GMT