Doyo daiya (Saturday schedule)

The bus service plan drawn up for Saturdays, separate from the weekday and holiday plans. In the April 2026 revision notice, Toei Bus times are divided into weekday, Saturday, and holiday schedules; some routes run only on Saturdays and holidays, and whether a route is revised can differ by day type.

What doyo daiya is

Doyo daiya, the Saturday schedule, is the bus service plan drawn up for running on Saturdays, separate from the plans for weekdays and holidays. It is the Saturday part of the daiya, the plan of each trip's departure times and number of trips.

Toei Bus draws up its schedules in three groups: weekday, Saturday, and holiday. The notice for the timetable revision of April 1, 2026 lists the routes being revised with a column headed "days changed," and beneath it the column splits into three: weekday, Saturday, and holiday.

How it differs from the weekday and holiday schedules

Each of the three groups is drawn up as a separate timetable. The same list for the April 1, 2026 revision shows this plainly. 市 01, which runs from 新橋駅前 (Shimbashi-ekimae), changed its weekday and Saturday times but left the holiday times alone, while the loop route 井 92, which starts from 大井町駅東口 (Oimachi Station East Exit), changed its weekday and holiday times and kept Saturday as it was. Depending on the route, Saturday may be left as it is, or only weekdays and Saturdays may be revised.

Sometimes the route itself picks the days. According to the bureau's regular fare page as of October 2026, 梅 01 in the Tama area runs only on Saturdays and holidays.

So even on a route you know well from weekdays, a bus at the same time on Saturday is not guaranteed. Before heading to the stop with weekday schedule times in mind, take a look at the Saturday column of the timetable. How to read the columns of a timetable is explained in detail in how to read a bus timetable.

Days that run on a schedule other than their weekday

The Saturday schedule is not always used only on Saturdays. At times such as the year-end and New Year period, some days run on a group other than the one their calendar day would suggest. The notice for the fiscal 2025 year-end and New Year period showed that 市 01 would run on the Saturday schedule on December 29 and 30, 2025, which fell on weekdays. The bureau announced this as the "service schedule for the year-end and New Year period" and listed by date and by route which group each would run on (service of this kind is generally called a special schedule).

Check which schedule runs on which day in the timetable for each route or in the Tokyo Metropolitan Bureau of Transportation's notices. Before a period such as year-end and New Year, it is worth looking once at that year's notice from the bureau.