Question Is timeline adaptive?

Can the timeline be adaptive? If the timeline scale is in minutes-seconds and not frames, is it going to adapt to the system's playback speed?
For example, if I have a timeline signal at 60 frames and the Editor is playing back at 30 fps, the event will happen after two seconds, and hipothetically after 1 second if the runtime platform runs at 60 fps.
But if the timeline is in minutes-seconds, will the event happen at the right time (after 1 second) regardless of the system's playback speed?
Unity Editor can sometimes be slower than the runtime platform, so this would be very useful to design animations for systems with higher FPS...

 

I believe Timeline stores everything in real-time instead of frames, and the frame shown is just for reference. That is, regardless of your settings, it is going to adapt to the system's playback speed.