Table of Contents
Campaign Details
Everything starts on the date of Mirtul 1st, 1492.
Calendar
The Calendar of Harptos was the calendar used across most of Faerûn. It was created by the wizard Harptos of Kaalinth, although most people associate the word “Harptos” with the calendar. It was split into twelve months, each lasting three tendays (or thirty days). There were an additional five days that fell between months, bringing the total number of days in most years to 365.
Date Conventions
The days making up a tenday did not have formal names. If precision was required, the number of the day and the number of the tenday were used, as in, “the fourth day of the first tenday of Flamerule”. Days of the month were typically written as the numerical date followed by the month name, for example, “15 Hammer” or “15th Hammer”. Informally or poetically, this could be spoken or written as “the 15th of Deepwinter”.

Months and Festivals
The names of the months and festivals used in Faerûn were as follows:
Harptos Month and Holiday Table
Month | Pronunciation | Name | Holidays |
---|---|---|---|
Hammer | /ˈhæm.ɚ/ | Deepwinter | Midwinter |
Alturiak | /ɔːlˈtɜːriæk/ awl-TUR-ee-æk | Claw of Winter | |
Ches | /tʃes/ | Claw of Sunsets | Spring Equinox on Ches 19 |
Tarsakh | /ˈtɑːrsæk/ TAR-sæk | Claw of Storms | Greengrass |
Mirtul | /ˈmɜːrtəl/ MUR-tuhl | The Melting | |
Kythorn | /ˈkaɪθɔːrn/ KIGH-thorn | Time of Flowers | Summer Solstice on Kythorn 20 |
Flamerule | /ˈfleɪmruːl/ FLAYM-rool | Summertide | Midsummer and Shieldmeet occurs the day after Midsummer, once every four years |
Eleasis | /ɛˈlisɪs/ eh-LEE-sis | Highsun | |
Eleint | /ɛˈleɪnt/ eh-LAYNT | The Fading | Autumn Equinox on Eleint 21 and Highharvestide |
Marpenoth | Leaffall | ||
Uktar | The Rotting | Feast of the Moon | |
Nightal | The Drawing Down | Winter Solstice on Nightal 20 |




