Prayer times in Stockholm today

Each time comes from the position of the sun over Stockholm (59.329, 18.069) on the day, worked out with the open source adhan library, the same one the app uses. Fajr begins when the sun is 18 degrees below the eastern horizon. Sunrise is when the top of the sun clears the horizon, and Dhuhr is when the sun passes its highest point. Maghrib is at sunset. Isha begins when the sun is 17 degrees below the western horizon. The method also moves some times by a fixed margin: Dhuhr 1 minute later. This far north the summer night is short, so Fajr is never earlier than the last seventh of the night and Isha never later than the first seventh.

Your local mosque may publish a timetable that differs by a few minutes, especially for Fajr and Isha. When the two disagree, follow your mosque.