Timeline Nexus

For the most part, there is no centralized Nexus connecting the different timelines to one another.

However, there is a space outside of time, to which only angels have access.

Index
The different Timelines are as follows:

Timeline 00 and 01 - The most dangerous timelines in any universe. Amateur time travelers are killed upon entry due to galaxy-sized immortals fighting for dominance, causing multi-galaxy sized hypernovas.

Timeline 3187 - This is the timeline that Max Takemitsu comes from, where Super Seventeen kills the Z-Team.

Timeline 4002 - This is the timeline of the series that takes place.

Timeline 5023 - This is the timeline that Jade Shatterstar comes from, where Frieza kills Goku on Namek.

Timeline 5845 - This is the original timeline, created by Akira Toriyama.

Timeline 5847 - This is the timeline of time patroller Trunks, from the original timeline.

Timeline 19089 - This is the timeline that Darrius travels to accidentally, growing to be as strong as the Z Fighters.