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Feasts revolving around the Resurrection

Orthodox Movable feasts
Catholic Movable Feasts
Select year between 326-4099 A.D.:
Year:
Julian Day and Gregorian Date Calculator
is a
 whose Julian Day Number is 
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(Edit the following field for interval calculations.)
is followed days later by
is a
 whose Julian Day Number is 
Calendar: Auto (Julian/Gregorian) Julian Only
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(You might be interested in NOAA's Sunrise/Sunset Calculator, also a pure JavaScript HTML file with many embedded calendar functions.)