Work / Tool

Intercalary

One day in every calendar: Gregorian, Julian, Hebrew, Islamic, Persian, Chinese, Coptic, Ethiopic, Armenian, Badí', French Republican and Ma

Address
intercalary.vercel.app
Kind
Tool
Captured
October 15, 2026
Visit the Site: Intercalary, opens in a new tab
intercalary.vercel.appIntercalary's first screen at 1440 wide, captured October 15, 2026.

In its own words

One day in every calendar: Gregorian, Julian, Hebrew, Islamic, Persian, Chinese, Coptic, Ethiopic, Armenian, Badí', French Republican and Mayan, with the moveable feasts of the year, computed in your browser from the published algorithms and checked against known dates. Nothing is fetched after the page loads.
Start Yours
Intercalary's home page from top to bottom.
The whole home page, top to bottom
Intercalary's first screen on a phone, 390 wide.
On a phone, 390 wide