"Fri, 20 Dec 2024 18:44:52"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241220
Only TIME
18:44:52
General datetime
2024-12-20 18:44:52Z
For Database
2024-12-20 18:44:52
For HTTP1.1
Fri, 20 Dec 2024 18:44:52 GMT