"Sat, 14 Dec 2024 21:11:15"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241214
Only TIME
21:11:15
General datetime
2024-12-14 21:11:15Z
For Database
2024-12-14 21:11:15
For HTTP1.1
Sat, 14 Dec 2024 21:11:15 GMT