What does "Offset" really do?

[megaroeny]

Does Offset define a time before the normal time the theme changes? Or delay the change?

For example, my Dark/Light theme switch uses Windows night light. I want dark theme to trigger 30 minutes before night light. Does the Offset do that, or am I delaying it by 30 minutes?

I suggest clarifying the behavior as a secondary line of text for this setting as well, under the "Offset" section title. Thanks!

[Jay-o-Way]

Offset delays the switch. You can use a negative value to make it sooner.

[megaroeny]

It does not take a negative value. I just tried and it resets to 0 with the save button disabled. Where are you seeing that option?

I would suggest to @Spiritreader to let the down arrow button go into the negative values. That is not obvious because that was the first thing I tried to use. So I assumed a negative value wasn't possible (which appears to be true). I just tried it.

[megaroeny]

Here is a screen recording of me trying to use a negative value. Not possible, not sure what you're doing 🤔

Screen.Recording.2025-04-12.195759.mp4

[Spiritreader]

It does not take a negative value. I just tried and it resets to 0 with the save button disabled. Where are you seeing that option?

I would suggest to @Spiritreader to let the down arrow button go into the negative values. That is not obvious because that was the first thing I tried to use. So I assumed a negative value wasn't possible (which appears to be true). I just tried it.

Offset may not be negative when using "Follow Windows Night Light"
You can enter negative values but it will not save when hitting set.

It is highly non trivial to read data from the Windows Night Light registry key, as such ADM is only able to react to Night Light on/off switches.
This means in order to allow a negative offset here, you would need to be able to predict the future, which, given the current state of modern computing, isn't possible yet.

[megaroeny]

Ahhhh makes sense. I set my own time then, thx for clarifying that.