"Sat, 18 Jan 2025 21:05:48"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250118
Only TIME
21:05:48
General datetime
2025-01-18 21:05:48Z
For Database
2025-01-18 21:05:48
For HTTP1.1
Sat, 18 Jan 2025 21:05:48 GMT