The **28/293 calendar** is a 13-month calendar invented by *Victor Engel*, where each month has 28 days not counting a *special day* that occurs exactly once every 294 days or 42 weeks. Every day, including any special day, belongs to a standard 7-day week.

This results in a 293-year cycle, that has 364 special days, so is equal to 294 periods of 364 days. The mean year is therefore about 365.24232 days.

Days and months are counted from 0 rather than 1.

Year 0 begins on 21 December 2012 and its first month (Month 0 Year 0) ends with a special day.

## 43/450 Calendar[edit | edit source]

The same author invented a similar calendar called the **43/450 Calendar**.

## External Links[edit | edit source]

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