The timeline depends almost entirely on the path you take and the complexity of your assets.
In amicable cases where both parties are cooperative, disclosure is prompt, and assets are straightforward, property division can be resolved in three to nine months from the date of separation. When complex assets are involved, such as business interests, or when one spouse is uncooperative, it can take significantly longer.
Contested cases that go to court typically take one to two years or more. In provinces with significant court backlogs, in particular in Ontario, the timeline from filing to trial can stretch even longer. The cost difference between a negotiated settlement and litigation is significant, and so is the emotional difference for the families involved.
Emotional considerations
Asset division is one of the most emotionally charged aspects of divorce, because for most people assets don’t represent just money but more importantly the sacrifices that were made in building a life together, and the emotional grief about what's being lost.
What research and experience both show is that the emotional intensity of the process is closely linked to the process itself. Adversarial litigation where each party is trying to "win" against the other tends to increase the emotional harm. Processes that keep both parties at the table with a shared goal of reaching a fair outcome, tend to produce agreements that both people can live with.
Practically speaking the best approach is not to focus on scoring points against your spouse, but to focus on what you actually need going forward. The goal is a financial foundation for the next chapter of your life, not victory in the last chapter.