This is designed to make it seem like your sims actually time traveled, using game mechanics of Sims 2. The only mod needed is Visitor Controller and Sim Blender - or something else that will summon sims to a lot and clear them off.
I originally wrote this to work with the Test of Time. Using these methods, you can time travel in other game play.

Time Travel Rules:
https://sims2testoftime.weebly.com/time-travel.html

This is NOT the same as the Time Travel Challenge, which is point based. Instead of points, I offer a way for your sims to seem to really time travel.