"Sat, 07 Dec 2024 13:54:21"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241207
Only TIME
13:54:21
General datetime
2024-12-07 13:54:21Z
For Database
2024-12-07 13:54:21
For HTTP1.1
Sat, 07 Dec 2024 13:54:21 GMT