"Wed, 18 Dec 2024 15:36:36"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241218
Only TIME
15:36:36
General datetime
2024-12-18 15:36:36Z
For Database
2024-12-18 15:36:36
For HTTP1.1
Wed, 18 Dec 2024 15:36:36 GMT