Ethiopian wall clocks are the only clocks in the world where the number six is interchanged with the number twelve, and their dates differ from the rest of the world. The Ethiopian calendar also has 13 months making it the only country in the world with this kind of calendar.
This means that Ethiopian clocks are reversed, with our 6:00 corresponding to their 12:00. Instead of starting at 12 a.m., the day begins at 7 a.m. and finishes at 6:59 a.m. Almost everyone in Ethiopia uses a 12-hour clock.
The 12 months in a year each has 31 days and the additional last month has 5 days in a common year and 6 days during a leap year and this repeats itself every four years just like other calendars.
Ethiopia is also Africa's sole country with its own alphabet.
Surprisingly Ethiopia celebrates its new year on September 11 and Christmas DayJanuary 06 apart from any other country in the whole world.