"Fri, 20 Dec 2024 15:35:36"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241220
Only TIME
15:35:36
General datetime
2024-12-20 15:35:36Z
For Database
2024-12-20 15:35:36
For HTTP1.1
Fri, 20 Dec 2024 15:35:36 GMT