"Mon, 17 Feb 2025 21:11:25"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250217
Only TIME
21:11:25
General datetime
2025-02-17 21:11:25Z
For Database
2025-02-17 21:11:25
For HTTP1.1
Mon, 17 Feb 2025 21:11:25 GMT