Calendar shows late day events on next day but at correct time

[natmash]

I am using multiple Apple shared calendars, and all of my events that happen after a certain point at night show up on the next day. They show up with the correct time on the next day, but just on the next day.

I have tried using multiple calendar modules but they are all the same, so I think it is something I am doing wrong either in my shared calendar itself of in the calendar module.

I am in the central timezone, and it looks like anything after about 7:00pm will show up on the next day.

It looks like it only occurs for recurring events.

Recurring event

One instance of this event for example shows up on 9/11 at 8:15pm.

Single event

This event shows on 9/13 at 9:00pm.

[sdetweil]

@natmash can you check the system time zone?

i think its set to utc time

[natmash]

@sdetweil

timedatectl returns America/Chicago. On my pi I run via a docker container, but I have also tested locally with just npm start and the same thing happens.

[sdetweil]

@natmash the docker container is another system, it needs a timezone property, defaults to utc

like this

[natmash]

Just coming back to this after a few weeks unable to get to it.

No luck. In addition, it still is only related to recurring events, whereas single events are set correctly. Even in a series of events the first event is fine but events after are wrong.

[sdetweil]

@natmash can you turn on debug

add

 ,"DEBUG"

to the logLevel list in config.js

redirect the output of npm start to a file

npm start >somefile.txt

[sdetweil]

@natmash

and maybe post one event from your cal ics file which demonstrates the issue

[MMRIZE]

@natmash @sdetweil
It seems a bug on the default calendar module. One of my CX3 user also reported it so I looked inside.
https://github.com/MMRIZE/MMM-CalendarExt3/discussions/146#discussioncomment-9380307

[sdetweil]

@MMRIZE i expect so, I’d like to see the event from the ics to see what we can do

[natmash]

BEGIN:VEVENT
CREATED:20240904T053053Z
DTEND;TZID=America/Chicago:20240910T211500
DTSTAMP:20240925T005517Z
DTSTART;TZID=America/Chicago:20240910T201500
LAST-MODIFIED:20240925T005515Z
LOCATION:Dance Class
RELATED-TO;RELTYPE=X-CALENDARSERVER-RECURRENCE-SET:2D48CA37-FCE5-4E16-871
9-1F47160BDBA3
RRULE:FREQ=WEEKLY;UNTIL=20250601T011500Z
SEQUENCE:3
SUMMARY:Wife Barre Class
UID:39669340-7AFD-4685-9BD6-6CE4B715486E
X-APPLE-CREATOR-IDENTITY:com.apple.mobilecal
END:VEVENT