"Sat, 21 Dec 2024 23:14:17"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241221
Only TIME
23:14:17
General datetime
2024-12-21 23:14:17Z
For Database
2024-12-21 23:14:17
For HTTP1.1
Sat, 21 Dec 2024 23:14:17 GMT