Helsinki is 1 hour ahead of Geneva
Best overlap: 8:00 AM to 5:00 PM in Geneva is 9:00 AM to 6:00 PM in Helsinki.
For a call that suits both sides, look at 8:00 AM to 5:00 PM in Geneva / 9:00 AM to 6:00 PM in Helsinki. Helsinki is 1 hour ahead of Geneva, but the generous 9-hour window means both teams can meet well within their normal day.