Thought Experiments help us understand time.
In the same sense, philosophy helps us understand the science of time.
A Time Stopping Machine will not work very well.
Relativity explains the passage of time.
Understanding philosophy and science help us see time as a real item that belongs in the universe as a function of theories in science that prove the existence of time through experimentation.
To explore all this and more, check out the “What Is Time? By Professor Sean Carroll. He explains the theories of Presentism and Eternalism”https://youtu.be/MAScJvxCy2Y