Recurring events after midnight UTC one day off

pintail105 · Jan 25, 2021, 2:58 AM

I’m in US Central Time zone (GMT-0600). It seems recurring events that start after 6PM local time (i.e., midnight UTC) have dates adjusted such that the event time is correct, but the date of the event is one day sooner.

I’ve pulled the develop branch and the problem still exists.

Here’s an example DEBUG log (private info redacted). In this example the start datetime is 6:30PM Wednesday CST (01:30 Thursday UTC), but the dates returned are all 6:30PM Tuesday (01:30 Wednesday UTC).

[18.01.2021 19:05.08.563] [DEBUG] have entries
[18.01.2021 19:05.08.564] [DEBUG]
event={“type”:“VEVENT”,“params”:[],“start”:“2021-01-07T01:30:00.000Z”,“datetype”:“date-time”,“end”:“2021-01-07T03:00:00.000Z”,“rrule
“:{”_cache”:{“all”:false,“before”:[],“after”:[],“between”:[]},“origOptions”:{“dtstart”:“2021-01-07T01:30:00.000Z”,“freq”:2,“wkst”:{"
weekday":6},“interval”:2,“byweekday”:[{“weekday”:2}]},“options”:{“freq”:2,“dtstart”:“2021-01-07T01:30:00.000Z”,“interval”:2,“wkst”:6
,“count”:null,“until”:null,“bysetpos”:null,“bymonth”:null,“bymonthday”:[],“bynmonthday”:[],“byyearday”:null,“byweekno”:null,“byweekd
ay”:[2],“bynweekday”:null,“byhour”:[1],“byminute”:[30],“bysecond”:[0],“byeaster”:null}},“dtstamp”:“2021-01-19T01:05:06.000Z”,“uid”:"
redacted@google.com",“created”:“2020-12-28T00:16:14.000Z”,“description”:“”,“lastmo
dified”:“2020-12-28T00:16:14.000Z”,“location”:“”,“sequence”:“0”,“status”:“CONFIRMED”,“summary”:“Event summary”,“transparency”:“O
PAQUE”}
[18.01.2021 19:05.08.564] [DEBUG] start=Wed Jan 06 2021 19:30:00 GMT-0600 (Central Standard Time) end=Wed Jan 06 2021 21:00:00 GMT-
0600 (Central Standard Time)
[18.01.2021 19:05.08.565] [DEBUG] between=Mon Jan 18 2021 19:05:08 GMT-0600 (Central Standard Time) to Mon Jan 17 2022 23:59:59 GMT-0600 (Central Standard Time)
[18.01.2021 19:05.08.570] [DEBUG] title=Event summary dates=[“2021-01-20T01:30:00.000Z”,“2021-02-03T01:30:00.000Z”,“2021-02-17T01:30:00.000Z”,“2021-03-03T01:30:00.000Z”,“2021-03-17T01:30:00.000Z”,“2021-03-31T01:30:00.000Z”,“2021-04-14T01:30:00.000Z”,“2021-04-28T01:30:00.000Z”,“2021-05-12T01:30:00.000Z”,“2021-05-26T01:30:00.000Z”,“2021-06-09T01:30:00.000Z”,“2021-06-23T01:30:00.000Z”,“2021-07-07T01:30:00.000Z”,“2021-07-21T01:30:00.000Z”,“2021-08-04T01:30:00.000Z”,“2021-08-18T01:30:00.000Z”,“2021-09-01T01:30:00.000Z”,“2021-09-15T01:30:00.000Z”,“2021-09-29T01:30:00.000Z”,“2021-10-13T01:30:00.000Z”,“2021-10-27T01:30:00.000Z”,“2021-11-10T01:30:00.000Z”,“2021-11-24T01:30:00.000Z”,“2021-12-08T01:30:00.000Z”,“2021-12-22T01:30:00.000Z”,“2022-01-05T01:30:00.000Z”]
[18.01.2021 19:05.08.571] [DEBUG] initial tz=America/Chicago
[18.01.2021 19:05.08.571] [DEBUG] corrected tz=America/Chicago
[18.01.2021 19:05.08.572] [DEBUG] start date/time=Wed Jan 06 2021 19:30:00 GMT-0600 (Central Standard Time)
[18.01.2021 19:05.08.573] [DEBUG] start offset=-360
[18.01.2021 19:05.08.574] [DEBUG] start date/time w tz =Wed Jan 06 2021 19:30:00 GMT-0600 (Central Standard Time)
[18.01.2021 19:05.08.574] [DEBUG] event date=Tue Jan 19 2021 19:30:00 GMT-0600 (Central Standard Time)
[18.01.2021 19:05.08.575] [DEBUG] event offset=-360 hour=19 event date=Tue Jan 19 2021 19:30:00 GMT-0600 (Central Standard Time)
[18.01.2021 19:05.08.576] [DEBUG] adjustHours=0
[18.01.2021 19:05.08.576] [DEBUG] duration=5400000
[18.01.2021 19:05.08.577] [DEBUG] saving event =false

sdetweil · Jan 25, 2021, 3:32 AM

@pintail105 when u installed was this a git pull/npm install, or git clone/npm install

also seem rrule troubles w complex rule sets like that one

mm, node-ical, rrule libraries w with utc based time

the luxon lib under rrule works w local time only, and assumes the date portion is today, not yesterday plus 1 hour.

i made a lot of fixes for calendar in 2.14. due to. being in the hospital right now i cant do any more

pintail105 · Jan 25, 2021, 7:21 PM

@sdetweil : Here’s how I installed the develop branch:
git clone -b develop https://github.com/MichMich/MagicMirror
cd MagicMirror/
npm install
cp …/…/MagicMirror_mystuff/config.js config/ # I had a made a copy of my main config.js here.
npm run start

No rush. Just wondering if this is a bug and if I should log it as one. I’m happy to help with code as I’m able to. But, I don’t have experience with nodejs and the libraries.

Thank you!

sdetweil · Jan 25, 2021, 7:31 PM

@pintail105 no idea. away from my system for weeks already. no timeline to get back.

all my fixes were in 2.14