Remia follows the Junian calendar, originally adopted by Numia Maria and revised by Marcia Junia Bruta.
Years consist of 360 days divided into 12 months consisting of 30 days each. The first day of the year is the winter solstice, with each season lasting for 3 months (90 days).
The months are named for the constellations of the zodiac.
- Altheorn (Altheorn the Tortoise-and-Serpent)
- Requalia (Requalia the Water Maiden)
- Narses (Narses the Ethereal Frog)
- Elres (Elres the Winged Dragon)
- Florus (Florus the Horned King)
- Tephini (Tephini the Mirror Butterfly)
- Ilancer (Ilancer the Rising Phoenix)
- Preo (Preo the Proud Warrior)
- Sorgo (Sorgo the Lofty Dove)
- Olthra (Olthra the Righteous Tiger)
- Lupio (Lupio the Two-tailed Wolf)
- Dimitarius (Dimitarius the Horse Bard)
Each month is divided into 3 weeks consisting of 10 days each. The days of the week are named for celestial bodies (the Sun, Moon, and wandering stars) and Corthas, the Earth.
- Arday (Arane, god of the Sun)
- Corday (Corthas, the Earth)
- Lensday (Lensella)
- Valisday (Valistae)
- Pharsday (Pharsus)
- Rhoday (Rhodun)
- Zeturday (Zeturn)
- Oriday (Orithena)
- Iroday (Irothanus)
- Enday (Enara, goddess of the Moon)
A lunar cycle consists of exactly 30 days and the first day of the month always begins with a new moon.
- Day 1 (New Moon)
- Day 2-7 (Waxing Crescent)
- Day 8-9 (Waxing Half-moon)
- Day 10-15 (Waxing Gibbous)
- Day 16 (Full Moon)
- Day 17-22 (Waning Gibbous)
- Day 23-24 (Waning Half-moon)
- Day 25-30 (Waning Crescent)