"Sat, 14 Dec 2024 15:36:13"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241214
Only TIME
15:36:13
General datetime
2024-12-14 15:36:13Z
For Database
2024-12-14 15:36:13
For HTTP1.1
Sat, 14 Dec 2024 15:36:13 GMT