Campaign Details

Everything starts on the date of Mirtul 1st, 1492.


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

Alturiak/ɔːlˈtɜːriæk/ awl-TUR-ee-ækClaw of Winter 
Ches/tʃes/Claw of SunsetsSpring Equinox on Ches 19
Tarsakh/ˈtɑːrsæk/ TAR-sækClaw of StormsGreengrass
Mirtul/ˈmɜːrtəl/ MUR-tuhlThe Melting 
Kythorn/ˈkaɪθɔːrn/ KIGH-thornTime of FlowersSummer Solstice on Kythorn 20
Flamerule/ˈfleɪmruːl/ FLAYM-roolSummertideMidsummer and  Shieldmeet occurs the day after Midsummer, once every four years
Eleasis/ɛˈlisɪs/ eh-LEE-sisHighsun 
Eleint/ɛˈleɪnt/ eh-LAYNTThe FadingAutumn Equinox on Eleint 21 and Highharvestide
Marpenoth Leaffall 
Uktar The RottingFeast of the Moon
Nightal The Drawing DownWinter Solstice on Nightal 20