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<p>[QUOTE="hontonai, post: 678743, member: 4703"]That's why almost 97% of the time the equivalence should be stated as a dual date - <i>e.g.</i> "1950/51", not merely "1950".</p><p><br /></p><p>1429 AH was the most recent Muslim year that fell entirely within one Gregorian calendar year - January 10-December 29, 2008. Next time that happens will be 1463 AH, in 2041 CE.</p><p><br /></p><p>Because the Muslim year is 12 lunar months - each consisting of 29 or 30 days - and the Gregorian calendar is based on the solar cycle, with months of 28-31 days each, a Muslim year is 10-12 days shorter than a Gregorian year. Each cycle of about 33-1/2 Muslim years equals only about 32-1/2 Gregorian years.</p><p><br /></p><p>In fact, only 23% of 1370 AH elapsed during 1950 - beginning on October 12 of that year. The other 77%, ending on October 2, was in 1951.</p><p><br /></p><p>(Generally the slight date discrepancy caused by the Gregorian calendar day running 24 hours - from midnight to midnight - and the Muslim calendar day running 24 hours+/- - from sundown to sundown - doesn't affect whether a particular Muslim year is, or is not, wholly within one Gregorian year.)[/QUOTE]</p><p><br /></p>
[QUOTE="hontonai, post: 678743, member: 4703"]That's why almost 97% of the time the equivalence should be stated as a dual date - [i]e.g.[/i] "1950/51", not merely "1950". 1429 AH was the most recent Muslim year that fell entirely within one Gregorian calendar year - January 10-December 29, 2008. Next time that happens will be 1463 AH, in 2041 CE. Because the Muslim year is 12 lunar months - each consisting of 29 or 30 days - and the Gregorian calendar is based on the solar cycle, with months of 28-31 days each, a Muslim year is 10-12 days shorter than a Gregorian year. Each cycle of about 33-1/2 Muslim years equals only about 32-1/2 Gregorian years. In fact, only 23% of 1370 AH elapsed during 1950 - beginning on October 12 of that year. The other 77%, ending on October 2, was in 1951. (Generally the slight date discrepancy caused by the Gregorian calendar day running 24 hours - from midnight to midnight - and the Muslim calendar day running 24 hours+/- - from sundown to sundown - doesn't affect whether a particular Muslim year is, or is not, wholly within one Gregorian year.)[/QUOTE]
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