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The Ethiopian calendar has a year of 13 months, with 12 months of 30 days and a short month of 5 or 6 days, The last month has 5 days in a common year and 6 days during the leap year.
Ethiopian new year is on September 11th, except in leap years, when it is on September 12th.
365 ÷ 7 = 52 x 7 +1 = 30 x 12+5
366 ÷ 7 = 52 x 7 + 2 = 30 x 12 + 6 (Leap year)
Present Ethiopian calendar Click Here
