EQCAL
Equal Calendar Equinox Calendar 6-Day Week 5-Week Month
EQCAL — also known as the Equal Calendar and Equinox Calendar — is designed as a practically near-perfect civil calendar. Every week has 6 days, every standard month contains exactly 5 weeks and 30 days, and every year consists of 12 months and 4 equal quarters. Its structure follows the mean tropical year of approximately 365.242189 days — 365 days, 5 hours, 48 minutes and 45 seconds — with the remaining days placed together at the end of the final month rather than distributed irregularly throughout the year.
This regular structure makes dates easier to understand, compare and plan across education, work and everyday life. Academic terms, project cycles, salaries, statistics and institutional schedules can be organized around consistent weeks, months and quarters, while the year remains naturally connected to the seasonal cycle through the southward equinox.
What’s the Purpose?
EQCAL Designed Around Life
EQCAL aims to make the calendar more compatible with the way modern life is organized. Its purpose is not simply to measure time differently, but to make education, work, planning and everyday routines easier to understand, coordinate and manage.
Make Planning More Predictable
Create a Better Educational Rhythm
Improve Work–Life Balance
Simplify Business and Institutional Planning
Make Time Easier to Understand
Build a Calendar for Modern Society
“A better calendar does not create more time; it makes the time we already have easier to understand and use wisely.”
What is EQCAL?
ABOUT EQ CALENDAR
EQCAL is a modern civil calendar system engineered by Eren Acar around equality, astronomical continuity, and the practical needs of everyday life. Also known as the Equal Calendar and the Equinox Calendar, it preserves the existing year numbering, ordinary timekeeping, and historical chronology while reorganizing the year into a clearer, more consistent, and more predictable structure. Its purpose is simple: to make the calendar better suited to the way people study, work, plan, and live.
EQCAL is built around the tropical year and can be understood as a modern synthesis of the strongest principles found in the Gregorian Calendar, Jalali Calendar, and Republican Calendar. It combines the historical and global continuity of the Gregorian system, the astronomical orientation of the Jalali tradition, and the Republican Calendar’s ambition to divide the year into a more rational and regular structure. Yet EQCAL is not a continuation of any one of them. It is a new civil calendar proposed for humanity, shaped by what earlier systems achieved and by what modern society now requires.
The system keeps the current numbering of years but shifts the beginning of the annual cycle by roughly 101 days, placing the New Year around the southward equinox. A civil calendar does not need to begin on a sacred, imperial, or historically inherited date simply because tradition placed it there. EQCAL instead uses a meaningful astronomical reference point and combines it with a structure designed for contemporary life.
Unlike more radical calendar reforms, EQCAL does not attempt to reinvent hours; It keeps ordinary timekeeping intact and focuses on making the civil calendar itself more logical, balanced, and usable. Its central principle is straightforward: the calendar should serve human life, rather than forcing human life to adapt to inherited irregularities.
Recognition by Numbers
Who Supports EQCAL?
People and Organizaton
New Updates
