The Blue Night Network is the overnight public transit service operated by the Toronto Transit Commission (TTC) in Toronto, Ontario, Canada. The network consists of a basic grid of 27 bus and 4 streetcar routes, distributed so that almost all of the city is within 2 km of at least one route. It is the largest and most frequent Night Network in North America. (New York City does not have a separate night network: it rather runs 24 hour/day service under the same route numbers.)
The times of Blue Night service vary according to individual scheduling situations on each route. Most regular service bus and streetcar routes cease operations at approximately 1:30 a.m. If there is a Blue Night route on the same street, its first trip will then follow at a suitable interval after the last regular run.
On the subway system, the last trains on each line make a complete trip; the last trains running east, west, and north from Bloor–Yonge and St. George stations each leave at 1:50 a.m. or just after. Each station then closes as the last train passes it.
In the morning, regular bus and streetcar service mostly takes over from the corresponding Blue Night routes around 5:30 a.m. The first trains on the subway then start from various positions along the routes, allowing all stations to open more or less simultaneously just before 6:00 a.m. (except on Sundays). The Blue Night routes that parallel the subway lines keep running until that time, and their last buses terminate service at a subway station to facilitate transfers to the trains.
Normal TTC fares apply on the Blue Night Network. At the transition to or from Blue Night service, passengers can transfer to or from regular-service routes as usual. For TTC passholders, all passes expire at 5:30 a.m. rather than midnight, so a pass valid for the preceding traffic day can be used to board Blue Night routes up to that time.