"Sat, 14 Dec 2024 12:54:45"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241214
Only TIME
12:54:45
General datetime
2024-12-14 12:54:45Z
For Database
2024-12-14 12:54:45
For HTTP1.1
Sat, 14 Dec 2024 12:54:45 GMT