"Sat, 21 Dec 2024 07:45:56"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241221
Only TIME
07:45:56
General datetime
2024-12-21 07:45:56Z
For Database
2024-12-21 07:45:56
For HTTP1.1
Sat, 21 Dec 2024 07:45:56 GMT