Earlier quoted context omitted.
I can't lay hands on a link, but there was an article about the psychological phenomenon of time passing too quickly. It was a measurable state you could detect a brain as either being in or not in. One of the most reliable ways to reset internal time perception? Experiencing nature. I try and take more walks now.
By reset, you mean the effect lasts after the nature time ends? Because if not, while walks are nice, my goal isn't exactly to have twice as long of a subjective experience but 60% of it is parks.
Spending time in nature essentially jumped your brain out of the loop, even after you returned from nature.
Think it might have been a summary of this: "Awe Expands People’s Perception of Time, Alters Decision Making, and Enhances Well-Being" (2012)