In the mystical realm of Eternalia, time flows differently than on Earth. The calendar was established by the ancient Chronoweavers, who mapped their world's celestial dance around its triple suns. They divided the year into 15 months, each blessed by a different celestial phenomenon. The precise length of the year varies slightly, averaging around 445 Earth days, with a leap day added to the second month, Moonrise, every four years to maintain synchronization with the cosmic cycles.

The months themselves vary in length: some span 30 days, others 31, and a few follow the original 28-day cycle. This intricate system reflects the complex interplay of Eternalia's three suns and three moons. Starfall (30 days) begins the year, followed by Moonrise (28 or 29 days), Sunburst (31), Windwhisper (30), Stormborn (31), Cloudweave (30), Fireflight (31), Mistshade (30), Rainbloom (31), Thundercall (30), Frostweave (31), Earthsong (28), Lightdance (28), Shadowveil (28), and concluding with Celestial (28).

The Chronoweavers observed a fundamental rhythm of 7 cycles, roughly equivalent to an Earth week, believed to resonate with the world's magical ley lines. The calendar thus serves not just as a measure of time, but as a guide for magical practice, astronomical prediction, and agricultural planning, essential for harmony in Eternalia.

Year 1000 marked the Great Convergence, when all three suns aligned with the moons, creating a spectacular display of celestial magic that ushered in a new age of enlightenment and discovery. Since then, Eternalians have measured their years from this momentous event, marking the beginning of what they call the Age of Harmony. The current calendar system reflects the refined understanding achieved during this age.