Mac OS X 10.11: Incorrect Dates on Hebrew Calendar in 5807

Originator:john
Number:rdar://23121860 Date Originated:15-Oct-2015 12:35 AM
Status:Open Resolved:
Product:OS X Product Version:Mac OS X 10.11 (15A284)
Classification:Other Bug Reproducible:Always
 
Summary:
The dates in the Hebrew calendar for 5806 and 5807 in Mac OS are off by a day. The calendar is reporting an extra day added to Heshvan in 5806, but that extra day is not added until 5807. All the dates between 29 Heshvan 5806 and 1 Kislev 5807 are off by a day. One easy-to-observe consequence of this is that the system is reporting Rosh Hashanah 5807 as being on 2 October 2046, when multiple sources confirm that it is on 1 October 2046.

Steps to Reproduce:
1. Create a date for 5807-01-01 on the Hebrew Calendar
2. Convert that date into the Gregorian calendar

Expected Results:
It should report the Gregorian date as 2046-10-01

Actual Results:
It reports the Gregorian date as 2047-10-02

Regression:

Notes:

You can compare the dates for these years to these calendars:

Calendar 1: https://www.hebcal.com/hebcal/?year=2046&v=1&maj=on&min=on&nx=on&mf=on&ss=on&mod=on&c=off&month=x#cal-2046-10 
Calendar 2: http://www.chabad.org/calendar/view/month.asp?tdate=10/1/2046

Comments


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