Lore Question: how long was the player character on the a we before escaping?

We know in Below Zero, the events take place approximately two years after the events of the first game and the crash of the Aurora on 4546B.

But in the first game, how long is it supposed that the player character was stuck on 4546B? A year? Only a few weeks?

It obviously varies player by player, gamewise, in how quickly they can speed run getting resources and building the rocket and curing the disease and turning off the gun, but in general, how long supposedly is the player “stuck” there in terms of the lore/storyline itself?

EDIT: typo in title.

“How long was the player character on the PLANET before escaping?”