"Sat, 21 Dec 2024 13:32:39"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241221
Only TIME
13:32:39
General datetime
2024-12-21 13:32:39Z
For Database
2024-12-21 13:32:39
For HTTP1.1
Sat, 21 Dec 2024 13:32:39 GMT