"Wed, 18 Dec 2024 21:47:51"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241218
Only TIME
21:47:51
General datetime
2024-12-18 21:47:51Z
For Database
2024-12-18 21:47:51
For HTTP1.1
Wed, 18 Dec 2024 21:47:51 GMT