Buses will continue to operate to their current timetables from 15 June

Bus services in the HSL area have been operating a reduced summer timetable since 20 April. The reduced summer service will continue from 15 June onwards. A Sunday service is running on Saturdays and there is no extended night service on Friday and Saturday nights.
Autumn timetable will operate from 10 August if circumstances allow.

However, the timetables for Tuusula bus routes 642, 665, 665A and 665K will change on 15 June (Link to a separate release).

In addition, on route 641, the first service from Tikkurila (on weekdays) will be brought forward by two minutes and on route 542, the first service from Soukka (on Saturdays and Sundays) will be brought forward by three minutes

In Sipoo, bus services will continue to operate a normal summer timetable.

Timetables are available in the Journey Planner as well as in the printable timetables:

See also:
Changes to tram timetables from 15 June
Changes to public transport in summer 2019 due to street and track works