The Tideglass Reckoning

Name
The Tideglass Reckoning
Year length
360 days
Structure
Twelve months of thirty days each, structured by tides rather than weeks. Each month divides into three tides of ten days. The First Tide marks beginnings, departures, and promises. The Second Tide governs work, travel, trade, and decisions. The Third Tide holds endings, debts, returns, and remembrance. This lunar-tidal reckoning is kept by coastal kingdoms, mapmakers, sailors, archivists, and those who study lost places. Every third month culminates in a Glassnight—a night when maps, mirrors, and still water are believed to reveal places as they truly are, drawing seekers and scholars alike. The calendar acknowledges something deeper: a hidden thirteenth month called Stillmere, which manifests only when Vael Tareth touches the waking world for a full tide, allowing passage to cities unbuilt and reunion with those long dead.
Months
Frostwane—the thawing month. Rainmoot—the month of storms and council meetings. Greenwake—the month of planting and river travel. Brightfall—the month of long daylight. Emberdeep—the warmest month. Goldmere—the month of harvest markets. Duskwane—the fading month. Mistcall—the month of fog and hidden roads. Blacktide—the month of dangerous seas. Starhollow—the month of cold clear nights. Ashveil—the month of mourning and old stories. Yearsend—the final month, used for debts, records, and farewells.
Special days
Four Glassnights mark the year's turning points. The Council Glass falls on Rainmoot 30, where treaties, oaths, and political decisions are sworn beneath its light. The Burning Glass illuminates Emberdeep 30, blessing festivals, marriages, and those who undertake risky journeys. The Drowned Glass haunts Blacktide 30—an unlucky night when sailors will not leave port and the sea reveals what it has taken. The Final Glass opens on Yearsend 30, a night for remembrance, inheritance, and the naming of the dead. Each Glassnight is whispered to show truth in reflective surfaces, though what truth appears depends on who looks and what they seek.