Tallinn is 1 hour ahead of Stockholm. Tallinn uses Eastern European Time (EET/EEST, UTC+2/+3) while Stockholm uses Central European Time (CET/CEST, UTC+1/+2). When it's 12:00 PM in Tallinn, it's 11:00 AM in Stockholm.
Both cities observe daylight saving time on the same schedule as part of the European Union, so the 1-hour difference remains consistent year-round.
For business calls: Schedule between 10:00 AM - 6:00 PM Tallinn time (9:00 AM - 5:00 PM Stockholm time) for standard business hours overlap.
Tallinn and Stockholm have historic ties dating back to the Swedish Empire when Estonia was under Swedish rule. Today, regular overnight ferries connect the two Baltic Sea capitals. Many Swedish companies operate in Estonia, attracted by the country's digital infrastructure.