Adopt a 13-month, 28-day calendar worldwide (aka International Fixed Calendar)


Adopt a 13-month, 28-day calendar worldwide (aka International Fixed Calendar)
The Issue
The current Gregorian calendar, with its uneven months ranging from 28 to 31 days, has consistently been a source of confusion and inefficiency. It's time we consider a more harmonious and uniform approach to timekeeping—by adopting a 13-month, 28-day calendar. This innovative and streamlined calendar divides the year into 13 months with exactly 28 days each, resulting in an easier and more predictable system of scheduling.
One of the most significant benefits of this calendar reform is its simplicity. Every month would begin on the same day of the week, completely eliminating the need for constant adjustments and recalculations. This regularity will simplify date calculations, making it beneficial for schools, businesses, finance sectors, and government operations worldwide.
Moreover, this model naturally leads to more equitable economic transactions. By using a uniform month structure, companies can provide consistent financial reporting periods, reducing confusion and misalignment. It also enables smoother planning and coordination for international businesses and organizations, enhancing global coherence in economic operations.
The 13-month calendar also holds cultural and historical significance, echoing ancient timekeeping systems that align more closely with lunar cycles. This could lead to a renewed appreciation for historical practices in modern society, fostering cultural inclusivity.
This would only require a leap year every decade, providing, a more repeatable and memorable solution.
Critics might argue about the disruption caused during the transition, but the long-term benefits of adopting this calendar far outweigh the temporary adjustments. Additionally, modern technology and software can easily facilitate and accommodate this transition, minimizing potential disruptions.
By signing this petition, you are advocating for a logical and efficient change to the way we perceive and manage time. Your support is crucial in initiating discussions with global leaders and decision-makers about considering and implementing a 13-month, 28-day calendar system. Our calendar has been the same since 1582, it's time for an update, an improvement, a change. Together, we can make this visionary change a reality. Please sign this petition to support the transition to a more efficient and universally beneficial calendar system.

2
The Issue
The current Gregorian calendar, with its uneven months ranging from 28 to 31 days, has consistently been a source of confusion and inefficiency. It's time we consider a more harmonious and uniform approach to timekeeping—by adopting a 13-month, 28-day calendar. This innovative and streamlined calendar divides the year into 13 months with exactly 28 days each, resulting in an easier and more predictable system of scheduling.
One of the most significant benefits of this calendar reform is its simplicity. Every month would begin on the same day of the week, completely eliminating the need for constant adjustments and recalculations. This regularity will simplify date calculations, making it beneficial for schools, businesses, finance sectors, and government operations worldwide.
Moreover, this model naturally leads to more equitable economic transactions. By using a uniform month structure, companies can provide consistent financial reporting periods, reducing confusion and misalignment. It also enables smoother planning and coordination for international businesses and organizations, enhancing global coherence in economic operations.
The 13-month calendar also holds cultural and historical significance, echoing ancient timekeeping systems that align more closely with lunar cycles. This could lead to a renewed appreciation for historical practices in modern society, fostering cultural inclusivity.
This would only require a leap year every decade, providing, a more repeatable and memorable solution.
Critics might argue about the disruption caused during the transition, but the long-term benefits of adopting this calendar far outweigh the temporary adjustments. Additionally, modern technology and software can easily facilitate and accommodate this transition, minimizing potential disruptions.
By signing this petition, you are advocating for a logical and efficient change to the way we perceive and manage time. Your support is crucial in initiating discussions with global leaders and decision-makers about considering and implementing a 13-month, 28-day calendar system. Our calendar has been the same since 1582, it's time for an update, an improvement, a change. Together, we can make this visionary change a reality. Please sign this petition to support the transition to a more efficient and universally beneficial calendar system.

2
The Decision Makers
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Petition created on January 20, 2026
