Helsinki is 1 hour ahead of Stockholm. Helsinki uses Eastern European Time (EET, UTC+2 in winter and EEST, UTC+3 in summer) while Stockholm uses Central European Time (CET, UTC+1 in winter and CEST, UTC+2 in summer). When it's 12:00 PM in Stockholm, it's 1:00 PM in Helsinki.
Both cities observe daylight saving time on the same schedule, so the 1-hour difference remains constant year-round.
Best calling time: 10:00 AM - 6:00 PM Helsinki time. This corresponds to 9:00 AM - 5:00 PM in Stockholm, covering Swedish business hours.
Helsinki and Stockholm are neighboring Nordic capitals, connected by overnight ferries (about 16 hours) or short flights (about 1 hour). Both cities have thriving tech scenes and close cultural and economic ties.