"Sat, 14 Dec 2024 15:35:55"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241214
Only TIME
15:35:55
General datetime
2024-12-14 15:35:55Z
For Database
2024-12-14 15:35:55
For HTTP1.1
Sat, 14 Dec 2024 15:35:55 GMT