0
Fixed

Outlook Calendar Error - one hour earlier!

Neil M 3 years ago updated by Michael J. Radwin 9 months ago 2

Hi

I have used HebCal for years. I now live in Israel.

When I subscribe to ICS with latest outlook using Israel as location, it puts my events straddling two days - e.g. a chag will be from 11pm to 11pm the next night and each "date" from 11pm to 11pm next time.

Its very hard to actually work out what is what and renders the calendar useless.

Please help

Answer

Answer
Fixed

Hi Neil, thanks for being a long time Hebcal user and reporting this bug many years ago. Although we corresponded privately recently, I'm also answering this question here for others who may be searching for the answer.


We were finally able to reproduce this error on Outlook 365 web. We made two changes to our iCalendar feeds to fix the problem for you:

1. Our .ics feeds so they include X-MICROSOFT-CDO-ALLDAYEVENT:TRUE which according to some Microsoft documentation might fix the problem.

2. Our VTIMEZONE implementation for Asia/Jerusalem (the timezone that is used throughout Israel) has been modified so it only uses a simpler, current Daylight Saving Time rules (which clocks are advanced by one hour, beginning on the Friday before the last Sunday of March, and ending on the last Sunday of October). This is perfectly accurate for any calendars 2013 and later (when the Israeli government standardized and simplified DST rules).


Shana Tova!

Answer
Fixed

Hi Neil, thanks for being a long time Hebcal user and reporting this bug many years ago. Although we corresponded privately recently, I'm also answering this question here for others who may be searching for the answer.


We were finally able to reproduce this error on Outlook 365 web. We made two changes to our iCalendar feeds to fix the problem for you:

1. Our .ics feeds so they include X-MICROSOFT-CDO-ALLDAYEVENT:TRUE which according to some Microsoft documentation might fix the problem.

2. Our VTIMEZONE implementation for Asia/Jerusalem (the timezone that is used throughout Israel) has been modified so it only uses a simpler, current Daylight Saving Time rules (which clocks are advanced by one hour, beginning on the Friday before the last Sunday of March, and ending on the last Sunday of October). This is perfectly accurate for any calendars 2013 and later (when the Israeli government standardized and simplified DST rules).


Shana Tova!