"Wed, 18 Dec 2024 21:36:00"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241218
Only TIME
21:36:00
General datetime
2024-12-18 21:36:00Z
For Database
2024-12-18 21:36:00
For HTTP1.1
Wed, 18 Dec 2024 21:36:00 GMT