What is 13 month calendar?

A 13-month calendar is a solar calendar that divides the year into 13 months of exactly 28 days each. This totals 364 days, with one day left over, often called a "Year Day" or "Leap Day", which is not part of any month. Some versions place this day at the end of the year, while others insert it between June and July. Because each month has exactly four weeks, the calendar is perennial, meaning the same dates always fall on the same days of the week each year.

Key aspects of a 13-month calendar include:

• Month Structure: Each month has precisely 28 days, consisting of exactly four weeks. This consistent structure simplifies scheduling and date calculations.

• Year Day/Leap Day: The extra day ensures the calendar remains aligned with the solar year. Its placement varies depending on the specific calendar design. It could be considered as <a href="https://www.wikiwhat.page/kavramlar/Year%20Day" >Year Day</a> or <a href="https://www.wikiwhat.page/kavramlar/Leap%20Day" >Leap Day</a>.

• Perennial Nature: Because the month structure is fixed, the calendar is the same every year. The same date always falls on the same day of the week.

• Various Proposals: Over time, several different 13-month calendar proposals have been put forward. One of the most well-known is the <a href="https://www.wikiwhat.page/kavramlar/International%20Fixed%20Calendar" >International Fixed Calendar</a>. Each proposal has its own naming conventions for the months.

• Potential Advantages: Proponents argue that a 13-month calendar offers advantages in terms of simplification, improved business planning, and ease of scheduling compared to the traditional Gregorian calendar.

• Challenges to Adoption: Despite potential benefits, widespread adoption faces significant hurdles. This is mainly because of the need for a global consensus and adjustment to existing calendar systems.