CCQ-1991 - Civil Code of Québec

Full text
433. A matrimonial regime, whether legal or conventional, takes effect on the day when the marriage is solemnized.
A change made to the matrimonial regime during the marriage takes effect on the day of the act attesting the change.
In no case may the parties stipulate that their matrimonial regime or any change to it will take effect on another date.
1991, c. 64, a. 433.