91 and 91: the domicile gate and the floor that runs from JURISDICTION

Two clocks share a number and nothing else. One party must have been domiciled in Colorado for the 91 days before filing — a jurisdictional gate. Then the decree floor runs 91 days from the court acquiring JURISDICTION over the respondent, however acquired: C.R.C.P. 4 service, joining as CO-PETITIONER, or an appearance — the earliest trigger controls. The co-petition door is the pro-se-friendliest floor grammar on this platform: spouses who file together start the clock the day they file, with no service step at all.