"Sat, 21 Dec 2024 06:35:24"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241221
Only TIME
06:35:24
General datetime
2024-12-21 06:35:24Z
For Database
2024-12-21 06:35:24
For HTTP1.1
Sat, 21 Dec 2024 06:35:24 GMT