Annual Dates are off by one day in default Calendar module

[ctkjedi]

And yeah, I’ve read through the half dozen or so other posts with similar issue (ex. https://forum.magicmirror.builders/topic/8856/calendar-module-1-day-error/6) but even copying those configs to the letter haven’t solved the problem. All the annual, all day events (holidays, birthdays, anniversaries) show as being one day after they actually occur. I’ve checked and rechecked the config, restarted and rebooted but I keep seeing the same thing over and over again. At first I thought MagicMirror was pranking me by showing April Fool’s Day on the 2nd of April, but all the repeating dates are a day late.

MM v 2.14.0
Calendar module config:

{
                        module: 'calendar',
                        header: 'Kirkman Home Calendar',
                        position: 'top_left',
                        config: {
                                fullDayEventDateFormat: 'M/D',
                                timeFormat: 'absolute',
                                nextDaysRelative: true,
                                showEnd: false,
                                getRelative: 0,
                                urgency: 0,
                                titleReplace: {"'s Birthday":""},
                                customEvents: [{keyword: 'Birthday', symbol: 'birthday-cake', color: 'Gold'}],
                                calendars: [
                                        {
                                                symbol: "calendar",
                                                url: "https://calendar.google.com/calendar/ical/XXX/basic.ics"
                                        },
                                        {
                                                symbol: "glasses",
                                                url: "https://calendar.google.com/calendar/ical/XXX/basic.ics"
                                        }
                                ],
                        }
                },

I wouldn’t at all be surprised to find out I misplaced a quotation mark or a semicolon, but could someone take a glance to see if I’ve missed something or is the module currently borked? Thanks!

[sdetweil]

@ctkjedi this is usually because the date in the ICS file isn’t right…

can u show me one entry from the ics file, its just text, each event is
begin vevent
to
end vevent

[ctkjedi]

@sdetweil

BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:19520402T000000
DTEND;TZID=America/Los_Angeles:19520403T000000
RRULE:FREQ=YEARLY;WKST=SU;UNTIL=20361231T000000Z
DTSTAMP:20210316T001016Z
UID:**REDACTED**
CREATED:20210314T202209Z
DESCRIPTION:
LAST-MODIFIED:20210314T202209Z
LOCATION:
SEQUENCE:0
STATUS:CONFIRMED
SUMMARY:Mom's birthday
TRANSP:OPAQUE
END:VEVENT

This SHOULD be on April 2nd, but it’s displaying on the mirror as the 3rd. On Google Calendar, it’s fine.

[ctkjedi]

@sdetweil I tried defaulting back to a standard config and I’m seeing the same off results. I’m noticing it’s not just annual dates, but any regular repeating dates.

[sdetweil]

@ctkjedi well, in this particular case the daylight savings adjustment calculation is wrong, so we get off a day

in 1952, DST starts on April 27th
in 1992. DST starts on April 5th
in 2007 DST starts on March 11

the date/time gave me the right offset but i ‘assumed’ it was same as now…

if u reset the start year of the entry to 2008, it comes out right…

next release is on april 1st… don’t know if I can get this change in by then

[ctkjedi]

@sdetweil goddang daylight saving time! I really hope they follow through this time and get rid of it.

I’m not really sure where the start date was set though. I only added it to this particular calendar a few days ago and there isn’t a way, that I can see, to edit it.

[sdetweil]

@ctkjedi I submitted a fix for this issue, #2483
and the fix has been accepted for next release.

[ctkjedi]

@sdetweil Awesome. thanks for the follow up!

[ctkjedi]

@sdetweil This may or may not be related, so I’m happy to start a new thread.

I have a weekly D&D game, scheduled for every Saturday evening. The ICS reads as

BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20210319T200000
DTEND;TZID=America/Los_Angeles:20210319T230000
DTSTAMP:20210316T001016Z
UID:**REDACTED**
RECURRENCE-ID;TZID=America/Los_Angeles:20210320T200000
CREATED:20210213T021153Z
DESCRIPTION:**REDACTED**
LAST-MODIFIED:20210315T194037Z
LOCATION:**REDACTED**
SEQUENCE:1
STATUS:CONFIRMED
SUMMARY:D&D
TRANSP:OPAQUE
END:VEVENT

However, I rescheduled this week’s event for Friday, which reflects correctly on Google Calendar, but now all the entries on the mirror have been re-calculated as being on every Friday going forward.

[sdetweil]

@ctkjedi can u show the updated ics event with the rule (repeating rule)…

this one is not repeating