10
Metric months
The year is organized into 10 self-contained metric months, alternating between 36 and 37 days.
A research-backed calendar reform movement
A better rhythm for the year.
Metric Calendar is a practical 10-month calendar framework built around focused work, predictable rest, and balanced planning.
6
Day metric weeks
Each metric week has four Focus/Work Days followed by two Rest Days.
5
Bonus Rest Days
Every even-numbered metric month includes a 37th Day: Bonus Rest Day outside the metric week cycle.
The model
A decimal year structure with a consistent work/rest rhythm, while retaining practical alignment with January 1.
| Metric month | Days | Structure | Final date example |
|---|---|---|---|
| 01 | 36 | 6 metric weeks | 2026-01-36 |
| 02 | 37 | 6 metric weeks + 37th Day: Bonus Rest Day | 2026-02-37 |
| 03 | 36 | 6 metric weeks | 2026-03-36 |
| 04 | 37 | 6 metric weeks + 37th Day: Bonus Rest Day | 2026-04-37 |
| 05 | 36 | 6 metric weeks | 2026-05-36 |
| 06 | 37 | 6 metric weeks + 37th Day: Bonus Rest Day | 2026-06-37 |
| 07 | 36 | 6 metric weeks | 2026-07-36 |
| 08 | 37 | 6 metric weeks + 37th Day: Bonus Rest Day | 2026-08-37 |
| 09 | 36 | 6 metric weeks | 2026-09-36 |
| 10 | 37 / 38 | Year-end Bonus Rest Day; leap years add Day 38 | 2026-10-37 / 2028-10-38 |
g2026-01-01 = 2026-01-01
g2026-12-31 = 2026-10-37
Leap years end at YYYY-10-38
The six-day metric week
Each metric month begins with Day 1 and contains six complete metric weeks. The rhythm is intentionally simple: four Focus/Work Days, then two Rest Days.
1Focus
2Focus
3Focus
4Focus
5Rest
6Rest
Designed around productivity without burnout.
Metric Calendar is not just a tidier date system. Its central proposition is that the year can be structured around focused effort, predictable recovery, and clearer planning cycles.
Standard year totals
Focus/Work Days240
Regular Rest Days120
Bonus Rest Days5
Total365
Use the converter.
Convert Gregorian dates to Metric dates and Metric dates back to Gregorian dates using the official model.
Questions first.
Learn how holidays, birthdays, salaries, hourly work, essential services, and leap years can be understood in the framework.