Officially RotS has always taken place over 6 days (10 now, but that’s only to expand on how much happens during the montage epilogues)

Day 1: Battle of Yerbaba, Palpatine’s Rescue, Battle of Mandalore

Day 2: More Battle of Mandalore, Political maneuvering on Coruscant,
Anakin is appointed to the council
Anakin meets Palpatine at the Opera where he learns grevious is on utapau

Day 3: Obi-wan heads to Utapau,
Maul is captured.

Day 4: Obi-Wan kills Grevious, Anakin’s Fall and Order 66

Day 5: Empire Day, Palpatine declares his new empire, Obi-Wan vs Vader

Day 6: The twins are born, the decision is made to go into hiding

Day 7-10: Yoda and Obi-Wan head off for their new assignments, Ahsoka and Rex go into hiding, Vader gets up to shit, Padme’s funeral happens, Vader does more shit, Vader and Sidious stare at the death star

Within the next year:
Vader finds Ahsoka’s lightsaber(s) at the venator crash site, she is removed from the list of Jedi survivors.