Django - Does the cache timeout count after the last hit or after it's been set?

Question

Django

from django.core.cache import caches, DEFAULT_CACHE_ALIAS

cache = caches[DEFAULT_CACHE_ALIAS]
cache.set(cache_key, data, timeout)

The question is - I set a timeout value in the cache, let's say 300 seconds. Will the cache be reset 300 seconds after it was set, or 300 seconds after it was last accessed?
data = cache.get(cache_key)

Answer 1

Time to live after installation
https://docs.djangoproject.com/en/dev/topics/cache...

The timeout argument is optional and defaults to the timeout argument of the appropriate backend in the CACHES setting (explained above). It's the number of seconds the value should be stored in the cache.

Answer 2

Of course, 300 seconds after installation.
After the last appeal - some kind of nonsense. Are you saying that if I go to the cache every 299 seconds, I can keep the value of the key indefinitely? But what about invalidation, cache fading? And how do you control such a cache?