"Fri, 20 Dec 2024 18:18:38"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241220
Only TIME
18:18:38
General datetime
2024-12-20 18:18:38Z
For Database
2024-12-20 18:18:38
For HTTP1.1
Fri, 20 Dec 2024 18:18:38 GMT