I don’t practice meditation so I couldn’t tell you. I do find that when I do it, there are two regimes.

In the first regime the time goes somewhat quickly and it isn’t as difficult. I call this the zoning out regime. There usually hits a sudden point where zoning out is no longer quite as easy. This is probably the meditative regime where I have to be more mindful about keeping my mind blank.

I set a timer just to train my will, but I don’t prioritize spending a ton of time in that second regime. Just anecdotally, once I’m past the zoning out regime my focus is usually back.