"Mon, 17 Feb 2025 21:11:50"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250217
Only TIME
21:11:50
General datetime
2025-02-17 21:11:50Z
For Database
2025-02-17 21:11:50
For HTTP1.1
Mon, 17 Feb 2025 21:11:50 GMT