Tabular Islamic calendar Islamic calendar



the tabular islamic calendar rule-based variation of islamic calendar, in months worked out arithmetic rules rather observation or astronomical calculation. has 30-year cycle 11 leap years of 355 days , 19 years of 354 days. in long term, accurate 1 day in 2,500 years. deviates 1 or 2 days in short term.


kuwaiti algorithm

microsoft uses kuwaiti algorithm , variant of tabular islamic calendar, convert gregorian dates islamic ones. microsoft claimed variant based on statistical analysis of historical data kuwait, matches known tabular calendar.








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