"Sat, 14 Dec 2024 14:54:54"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241214
Only TIME
14:54:54
General datetime
2024-12-14 14:54:54Z
For Database
2024-12-14 14:54:54
For HTTP1.1
Sat, 14 Dec 2024 14:54:54 GMT