The calendar of Imperial Sparn traces its origin to old Earth.
24 hours = 1 day
7 days = 1 week
4 weeks = 1 month (28 days)
13 months + 1 day = 1 year (365 days)
111 years = 1 season
5 seasons = 1 aeon (555 years)
1 aeon = 1 orbit (a sidereal year)
Days of the Week (and their Meanings)
| Sparnian | Kymrikite | Old Earth |
|---|---|---|
| Soliad (Day of the Sun) | Soondaeg (Day of the Sun) | Sunday |
| Samiad (Samer's Day) | Moonsdaeg (Day of the Moons) | Monday |
| Daminiad (Day of Damini) | Trisdaeg (Third Day) | Tuesday |
| Midseptiad (Midweek's Day) | Wodindaeg (Odin's Day) | Wednesday |
| Pentiad (Fifth Day) | Thunordaeg (Thor's Day) | Thursday |
| Festchad (Feast Day) | Frakasdaeg (Day of Tournaments) | Friday |
| Kronoschad (Kronos' Day) | Saturndaeg (Saturn's Day) | Saturday |