Read the statement by Michael Teeuw here.
TypeError: curr.start.toISOString is not a function
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 i’ve sent you the working on. i don’t know why, but most of the time, the calendar is working find. 
 And sometimes there is this bug. I’ve sent you a diff file, with the differences between the files.
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 @MichMich I still have these problems with office365 calender :-( 
 Did you found a solution for this issue?
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 Did you tryout the develop branch yet? It might include some changes that could help you. 
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 Any update on this? I’m also using office365 calendar and my Calendar randomly stopped working. I’ve tried the node debug.js and just get the below. @MichMich @KirAsh4 pi@rpi3:~/MagicMirror/modules/default/calendar $ sudo node debug.js Create fetcher ... Create fetcher done! [ { title: 'Max', startDate: '1493568000000', endDate: '1493654400000', fullDayEvent: true, firstYear: 1990 }, { title: 'Someone', startDate: '1493740800000', endDate: '1493827200000', fullDayEvent: true, firstYear: 2010 }, { title: 'Another', startDate: '1493913600000', endDate: '1494000000000', fullDayEvent: true, firstYear: 2000 }, { title: 'Event', startDate: '1494086400000', endDate: '1494172800000', fullDayEvent: true, firstYear: 1980 } ] ------------------------------------------------------------
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 nope, still same here… :-( 
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 I’m just starting with my MagicMirror today and am also having this issue. 
 I have two calendars,- Office 365 - gives this issue
- google - loads, but doesn’t display all events in my calendar
 
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 so now I found something new: in my Calendar the DTSTART is set to: 
 DTSTART;TZID="(UTC+00:00) Monrovia, Reykjavik":20161028T200000when I remove (UTC+00:00) everything works fine. Then it looks like this: 
 DTSTART;TZID="Monrovia, Reykjavik":20161028T200000I’ve used a PHP Script to do this. 
 @MichMich can you implement this in the js script? or what will I need to replace for testing?$ch = curl_init(); // set url curl_setopt($ch, CURLOPT_URL, "https://ical.url/calendar.ics"); curl_setopt($ch, CURLOPT_USERAGENT, "Mozilla/4.0 (compatible; MSIE 5.01; Windows NT 5.0)"); curl_setopt($ch, CURLOPT_HEADER, false); curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true); curl_setopt($ch, CURLOPT_COOKIEJAR, "blabla"); // $output contains the output string $output = curl_exec($ch); // close curl resource to free up system resources curl_close($ch); $response = new Response(); $output = str_replace('(UTC+00:00) ', '', $output); $response->setContent($output); $response->setStatusCode(Response::HTTP_OK); $response->headers->set('Content-type', 'text/calendar'); return $response;
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 I suggest you fork the project, implement the fix that works for you and send me a PR. That way you can test it and others can benefit from your solution. :) 
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 Ok, :-) but actually I don’t no where to implement this in js :-) Can someone give me a hint where to place my str_replace(UTC+00:00) in DTSTART variable?Thanks ;-) 
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 So I ran into this problem and have a fix. I have uploaded the files to drop box for know. If this fixes others, i’ll look into updating the project. There are 2 files that need updated: 
 /home/pi/MagicMirror/modules/default/calendar/vendor/node-ical.js
 line 33
 https://dl.dropboxusercontent.com/u/1184191/node-ical.js/home/pi/MagicMirror/modules/default/calendar/vendor/ical.js 
 line 97
 https://dl.dropboxusercontent.com/u/1184191/ical.js


