"Mon, 03 Feb 2025 21:35:10"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250203
Only TIME
21:35:10
General datetime
2025-02-03 21:35:10Z
For Database
2025-02-03 21:35:10
For HTTP1.1
Mon, 03 Feb 2025 21:35:10 GMT