"Sat, 07 Dec 2024 18:48:18"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241207
Only TIME
18:48:18
General datetime
2024-12-07 18:48:18Z
For Database
2024-12-07 18:48:18
For HTTP1.1
Sat, 07 Dec 2024 18:48:18 GMT