Twilight and the Long Summer Evenings

There are extended daylight hours and twilight periods during summer at northern latitudes The article focusses on Manchester and Shetland. It defines twilight and its three stages, highlights the Sun's path at various times of the year, and explains the phenomenon of "Simmer Dim" in Shetland and the celebrations associated with these light nights.

Summer twilight

This explains the stages of twilight , and describes how the Sun's path changes throughout the year in Manchester, England. The phenomenon of "Simmer Dim" in the Shetland Islands is highlighted, characterized by continuous twilight and celebrated with a festival.

The Three Phases of Twilight Explained

Updated 10 January 2026 Watching the Sun set below the horizon and the sky gradually get darker and darker is an almost magical experience.  Twilight is that time of the day, just after sunset, or just before sunrise when the Sun is below the horizon but the sky is not completely dark. It is valued by… Continue reading The Three Phases of Twilight Explained