"Sat, 14 Dec 2024 23:48:16"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241214
Only TIME
23:48:16
General datetime
2024-12-14 23:48:16Z
For Database
2024-12-14 23:48:16
For HTTP1.1
Sat, 14 Dec 2024 23:48:16 GMT