"Mon, 17 Feb 2025 18:27:52"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250217
Only TIME
18:27:52
General datetime
2025-02-17 18:27:52Z
For Database
2025-02-17 18:27:52
For HTTP1.1
Mon, 17 Feb 2025 18:27:52 GMT