File:Jalaali Leap Year.svg

Summary

Description
English: Illustrates how the leap year in the Jalaali calendar works. Charts the amount of time from the beginning of the year (12:00am, 1 Farvadin, Tehran time) and the spring equinox for each year from A.D. 1750 to A.D. 2250 (Jalaali 1129-1629). Lengths of leap year cycles are indicated with by brackets below graph.

Intended for comparison with the analagous Gregorian chart (File:Gregoriancalendarleap_solstice.svg), thus the date range in nice round Gregorian years.

Generated with R & ggplot2, minor cleanup in Inkscape. Data generated using node and jalaai-js.

Source code: https://commons.wikimedia.org/wiki/File:Gregoriancalendarleap_solstice.svg
Date
Source Own work
Author Joel Bradshaw

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Category:CC-BY-SA-4.0#Jalaali%20Leap%20Year.svgCategory:Self-published work
Category:Calendar algorithms Category:Leap years Category:Jalali calendar
Category:CC-BY-SA-4.0 Category:Calendar algorithms Category:Jalali calendar Category:Leap years Category:Self-published work