"Sat, 14 Dec 2024 21:49:55"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241214
Only TIME
21:49:55
General datetime
2024-12-14 21:49:55Z
For Database
2024-12-14 21:49:55
For HTTP1.1
Sat, 14 Dec 2024 21:49:55 GMT