Calendar of Harptos

The Calendar of Harptos is the most widely used calendar system in the realms. It is split into twelve months, that each last three "weeks" of ten days. Moreover, five additional days fall between months (Midwinter, Hammer and Alturiak; Greengrass, between Tarsakh and Mirtul; Midsummer, between Flamerule and Eleasias; Highharvestide between Eleint and Marpenoth as well as the Feast of the Moon between Uktar and Nightal). Each of these says are associated with a festival and religious celebrations. Moreover, another day, called Shieldmeet, occurs every once four years on the day immediately after Midsummer.