Þriðjudagur
Þriðjudagur is the Icelandic word for Tuesday. It is the second day of the week according to both the Gregorian calendar and the ISO 8601 standard, where Monday is considered the first day. The name "Þriðjudagur" is derived from Old Norse and literally translates to "third day," reflecting an older counting system where the week began with Wednesday.
In the traditional Norse naming convention for weekdays, days were often named after deities or celestial bodies.
Like other days of the week, Þriðjudagur holds no special religious or universally recognized cultural significance