When importing the attached minimal ical file using icalendar-import-file, the resulting time is off by one hour. The problem probably lies somewhere in icalendar--convert-recurring-to-diary, but I couldn't pinpoint the exact location. The only meeting in the attached icalendar file is defined in timezone 'America/New_York' at 10 am. It shows up in my diary (which is timezone 'Europe/Berlin') at 3pm, even though the time difference between the two timezones is 6 hours. To reproduce, save the attached file somewhere and execute the following command: (icalendar-import-file "~/calendar_issue.ical" "~/test.diary") after adjusting the paths as necessary. In GNU Emacs 28.1 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.24.24, cairo version 1.16.0) of 2022-04-05 built on LP5-MAL1-CEM Repository revision: 5a223c7f2ef4c31abbd46367b6ea83cd19d30aa7 Repository branch: HEAD Windowing system distributor 'HC-Consult', version 11.0.12009000 System Description: Debian GNU/Linux 11 (bullseye) Configured using: 'configure --program-suffix=-28 --with-x-toolkit=gtk3 --with-json --with-native-compilation --with-xwidgets CC=gcc-10 PKG_CONFIG_PATH=/opt/rh/devtoolset-8/root/usr/lib64/pkgconfig' Configured features: CAIRO DBUS FREETYPE GIF GLIB GMP GNUTLS GSETTINGS HARFBUZZ JPEG JSON LIBOTF LIBSELINUX LIBXML2 MODULES NATIVE_COMP NOTIFY INOTIFY PDUMPER PNG SECCOMP SOUND THREADS TIFF TOOLKIT_SCROLL_BARS X11 XDBE XIM XPM XWIDGETS GTK3 ZLIB Important settings: value of $LANG: en_US.UTF8 locale-coding-system: utf-8-unix Major mode: Diary Minor modes in effect: dap-tooltip-mode: t dap-ui-many-windows-mode: t dap-ui-controls-mode: t dap-ui-mode: t 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