[BUG] Time Unit --> Hour pulling up Days instead.

**Describe the bug**
I have points where I want to add the datetime using the "Details" box.

When I drag my "Time" column into details, I notice that hovering over points will only show the date as "Jun 05, 2025" and truncates the time part of the datetime.

I notice that in the "Field List", that one can set "Time Unit" --> "Day"/"Hour"/"Minute"/"Second" - I assume that this is to pull out different parts of the datetime. Unfortunately, the Hour extraction is bugged, as it results in the same value as for "Day".

**Screenshots**

**Versions**
- pygwalker version: 0.4.9.15
- python version: 3.13.3
- browser: Chrome