Commuter trains with departure times before 3am will run on summer time and trains with departure times after 4am will run on winter time.
For each train listed below, there will be two departures at the stated time: the first on summer time and the second, one hour later, on winter time.
- L trains from Helsinki to Kirkkonummi at 3.03am and 3.33am
- L train from Kirkkonummi to Helsinki at 3.07am
- K trains from Helsinki to Kerava at 3.21am and 3.51am
- K train from Kerava to Helsinki at 3.05am
The 3.55am T train from Riihimäki to Helsinki (from Jokela at 4.12am, from Kerava at 4.32am) will operate on winter time. It will depart from Jokela at 4.12am and from Kerava at 4.32am winter time.
- There will be no T train from Riihimäki at 3.55am summer time.