"Sat, 21 Dec 2024 20:22:02"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241221
Only TIME
20:22:02
General datetime
2024-12-21 20:22:02Z
For Database
2024-12-21 20:22:02
For HTTP1.1
Sat, 21 Dec 2024 20:22:02 GMT