Norse Calendar Months. People in viking societies used the seasonal rhythm of the year to note the time as well as celebrate important dates and festivals. The old icelandic calendar is a unique calendar that was used as the civil calendar in iceland from the 10th to the 18th century.

How high the sun was in the sky, access. The viking calendar was divided into manadur or moon phases similar to our months and also into two parts skammdegi or dark days the winter (vetr) months followed by the nottleysa or nightless in the summer (sumr).