Observed arrival · 2026-08-24
TCL-Y2K, a Coordinate System for Time That Starts at 2000
An open temporal data format and reference engine for representing uncertain dates, intervals, calendar periods, and media offsets.
Field notes
TCL-Y2K represents temporal values through semantic labels, signed day coordinates, and a micro-media track, with 2000-01-01 serving as coordinate zero. The visible examples include uncertain and approximate years, decade masks, fiscal quarters, seasons, and open-ended ranges. A 71-item demonstration suite is organized into categories such as BCE and ancient dates, URL-safe forms, intervals, and historical milestones. The page also exposes npm, Cargo, and Python installation commands plus an RFC and ABNF definition.
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