"Wed, 18 Dec 2024 21:18:11"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241218
Only TIME
21:18:11
General datetime
2024-12-18 21:18:11Z
For Database
2024-12-18 21:18:11
For HTTP1.1
Wed, 18 Dec 2024 21:18:11 GMT