On All Saints’ Day, 4 November, a Sunday service will operate on all Helsinki region transport services. On the night of Saturday/Sunday, an extended weekend service will operate, i.e. the night services will operate as usual on Saturdays.Services operating on Saturday night are available here: 
Additional services on All Saints' Day. Timetables are available also in the Journey Planner.
Also commuter trains will operate a Sunday service. There will be additional L, P, N and T train services on Saturday night.
Additional train services:
L trains Helsinki-Kirkkonummi at 0.33am, 2.03am, 3.03am and 4.03am
P train Helsinki-Myyrmäki-Airport-Tikkurila-Helsinki at 0.58am
N trains Helsinki-Kerava at 11.57pm, 1.12am, 2.12am, 3.12am, 3.42am and Kerava-Helsinki at 0.44am, 2.14am and 3.14am
T trains Helsinki-Kerava-Riihimäki at 2.46am and 4.16am and Riihimäki-Kerava-Helsinki at 1.09am and 2.09am.
Tram 5 (Katajanokka Terminal – Central Railway Station) will exceptionally operate a Saturday service. Because Vikingn Line will be operating a Saturday service.
Additional services to cemeteries on All Saints’ Day
Bus 24X will run to the Hietaniemi cemetery every 20 minutes from Erottaja 11.23am-4.43pmpm and from Hietaniemi 11.45am-5.05pm.
Route 722 will have additional services to Honkanummi cemetary.
The bus will run every 60 minutes from the Railway Square 7.21am-4.21pm and from Havukoski 8.15am-5.15pm.