Timeline

'''Over the course of many [irl] years, the Sagas Ultimate story has progressed. This page will show you most arcs and events of every year.'''

Universe 3
Age 1000 - Kenkai, Toushima, and Shinkai are all born around this time.

Age 1015 - Kenkai begins to destroy the unnamed city, as Toushima begins to attempt at stopping him. The events of Dragon Ball Y Season One take place.

Age 1016/20 - Kin is born. Future Kin arrives. The events of Dragon Ball Y Season Two take place.

Age 1030 - The inhabitants of Universe 1 meet those of Universe X.

Age 1050 - The inhabitants of Universe 1 meet those of Universe 4.

Universe 4
Age 2000 - Day Yamada is born, 2 years later Takama is born. Project Makeo is began.

Age 2012 - Takama created a machine to change his age, essentially making him impervious to time. He becomes 16 to enable himself to grow stronger. Takama meets Son-Kun in the Hyperbolic Time Chamber and they become good friends.

Age 2013 - Makeo begins to corrupt the allies of Takama, as Son-Kun fought him and Day. Takama achieves Ultra Instinct in this battle but the toll kills him.

Age 2015 - Takama is revived to fight Makeo again. Sakama is born of fusion and defeats Makeo.

Age 2020 - Makeo attempts to blow up Planet Sadala. Makeo is killed following the events of the battle that followed.

Age 2021 - Takama grows distant from the group as he stays dead.

Age 2022 - Takama revives and decides to fuse with Makeo, forming Takeo. Rem meets Takama at this time. Aqua is born.

Age 2025 - Planet Taka is established. Rukia meets Makeo at this time.

Age 2030 - The inhabitants of Universe 4 meet those of Universe X.

Age 2040 - The inhabitants of Universe 4 meet those of Universe 2.

Age 2050 - Multiple characters fight in a tournament. Makeo wins.

Age 2051 - Son-Kun becomes the new defender of Earth.

Universe X
Time Immemorial - Masako is born and becomes the King of Everything.

Age 1 - Masako discovers he has a brother, Chrome.

Age 2 - He discovers Universes 3 and 4.

Arc Timeline
Age 1 - Age 2 in Universe X count as the Masako Arc.

Age 1000 - Age 1020 in Universe 3 count as the Dragon Ball Y Arc.

Age 2013 - Age 2020 in Universe 4 count as the Makeo's Path Arc.

Age 2022 in Universe 4 counts as the God of the Universe Arc.

Age 2025 in Universe 4 counts as Rukia's Arc.

Age 2 of Universe X, Age 2050 of Universe 4, and Age 1050 of Universe 3 all count as the Battle of X Arc.

The Mortal Level Arc is currently ongoing and is scheduled to end around March 1st, 2021.

Age 767 - Age 777 in Universe 7 counts as a mini arc "Godly Training."

Real World Timeline
Phase 1 - Creation of Universe X and Ultimate RP-ichi (2017)

Phase 2 - Creation of Universes 3 and 4 (2019)

Phase 3 - Assembly of Universes 1, 2, 5, 6, 7, 8, 9, and 10 (2021)

Phase 4 - Creation of Dragon Ball Online: Restored