Observed arrival · 2026-11-06
Grid Time’s Case for One Planetary Clock
An explainer makes the case for replacing local clock time with a shared decimal clock: ten deci-days to a day, with the same reading everywhere.
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- Readers curious about timekeeping and global scheduling
- Worth noticing
- It compares seven representations of a moment, from CST and 15時41分 to UTC, Unix time, and grid time.
Field notes
The page stages a comparison of the same moment across 18 places, then sorts familiar readings into “where-time” and “when-time.” It proposes ten deci-days per day, with a tick defined as 1/100,000 of a day (0.864 atomic seconds), and anchors the count to midnight at Greenwich. Its table maps fractions of a day to familiar durations, from a 2-hour-24-minute deci-day to a 14-minute-24-second centi-day.
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