Public bug reported: gnome-calendar doesn't import ics files correctly.
1. I downloaded public ics files like https://www.calendarlabs.com/ical- calendar/ics/76/US_Holidays.ics Their entries were shown in gnome- calendar, but not in gnome's date & time. In gnome-calendar they had an end date before the start date. The ics files from calendarlabs don't implement the standard from https://tools.ietf.org/html/rfc5545#section-3.6.1 for VEVENTs correctly. While the DATE from DTSTART is inclusive, the DATE from DTEND isn't. For a one day event DTEND's DATE has therefore to be one day after DTSTART's date. Some programs correct this by simply increasing DTEND by one day in these cases and gnome-calendar should do that too. As no event can end before it starts, gnome-calendar's behavior of setting the end date before the start date doesn't make sense. 2. If a VEVENT has a DTSTART property with a DATE but no DURATION and no DTEND property, according to https://tools.ietf.org/html/rfc5545#section-3.6.1 "the event's duration is taken to be one day." I therefore deleted the DTEND property in for instance US_Holidays.ics and expected that now gnome-calendar would import the ics file's VEVENTS correctly. But even in this case of standard conforming ics files gnome-calendar imported them with an end date before the start date. This time without the need to correct an error, but simply the need to implement a standard correctly. In both cases gnome-calendar shouldn't produce events with a end date before the start date. I used apport but again: I have ubuntu 20.04.2 LTS and an up to date gnome-calendar 3.36.2-0ubuntu1. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: gnome-calendar 3.36.2-0ubuntu1 ProcVersionSignature: Ubuntu 5.4.0-70.78-generic 5.4.94 Uname: Linux 5.4.0-70-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.16 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME Date: Mon Mar 29 02:46:12 2021 InstallationDate: Installed on 2018-08-10 (961 days ago) InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725) ProcEnviron: PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=de_DE.UTF-8 SHELL=/bin/bash SourcePackage: gnome-calendar UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: gnome-calendar (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug focal -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1921687 Title: gnome-calendar doesn't import ics files correctly To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-calendar/+bug/1921687/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs