core: negative offset from calender trigger isn’t working

The problem

Hi team!

When I set up calender-trigger with negative offset (30 minutes before the event starts), then nothing get triggered. Also the format of the negative offset is changed after putting it in (there are zeros missing).

What version of Home Assistant Core has the issue?

2022.12.7

What was the last working version of Home Assistant Core?

No response

What type of installation are you running?

Home Assistant OS

Integration causing the issue

No response

Link to integration documentation on our website

https://www.home-assistant.io/integrations/calendar/

Diagnostics information

No response

Example YAML snippet

alias: "Kalender | Arbeitsbeginn in 30 Minuten "
description: ""
trigger:
  - platform: calendar
    event: start
    offset: "-00:31:00"
    entity_id: calendar.arbeit
condition: []
action:
  - service: notify.mobile_app_iphone
    data:
      title: Kalender
      message: Die Automation mit 31 Minuten Offset wurde getriggert.
mode: single

Anything in the logs that might be useful for us?

No response

Additional information

https://community.home-assistant.io/t/calendar-trigger-not-working/470696/7

About this issue

Original URL
State: closed
Created 2 years ago
Comments: 41 (16 by maintainers)

Most upvoted comments

Thank you, fantastic detail, I will have a closer look.

I am doing work on hardening timezone handling in all calendars and may add some diagnostics and debug information and general checks.

I found a DST handling bug which may help expose some issues here too. I also see caldav may not be getting timezones right for all day events due to always using utc.

allenporter on Mar 18, 2023