# Home Assistant timezone and configuration override issues

DevFeed: [Home Assistant timezone and configuration override issues](<https://devfeed.tech/articles/two-nasty-surprises-in-home-assistant-s-config-18922.md>)

Original publisher: [Read original article](<https://blog.frankel.ch/home-assistant/9/>)

Author: Nicolas Fränkel

Published: 2026-07-05T00:00:00Z

Content type: opinion

Language: en

Sources: [Nicolas Fränkel](<https://devfeed.tech/sources/nicolas-frankel.md>)

Topics: [Home Assistant](<https://devfeed.tech/topics/home-assistant.md>), [timezone](<https://devfeed.tech/topics/timezone.md>), [Automation](<https://devfeed.tech/topics/automation.md>), [bug](<https://devfeed.tech/topics/bug.md>), [configuration](<https://devfeed.tech/topics/configuration.md>), [YAML](<https://devfeed.tech/topics/yaml.md>)

Tags: [automation](<https://devfeed.tech/tags/automation.md>), [bugs](<https://devfeed.tech/tags/bugs.md>), [config](<https://devfeed.tech/tags/config.md>), [home-assistant](<https://devfeed.tech/tags/home-assistant.md>), [locale](<https://devfeed.tech/tags/locale.md>), [technical](<https://devfeed.tech/tags/technical.md>), [timezone](<https://devfeed.tech/tags/timezone.md>), [user-experience](<https://devfeed.tech/tags/user-experience.md>), [yaml](<https://devfeed.tech/tags/yaml.md>)

## AI overview

The author describes Home Assistant shutter automations that ran an hour late during summer time because the instance timezone appeared as Paris/+1. Overriding the timezone in configuration removed UI-set settings, requiring all settings to be specified again in YAML.

## Source excerpt

Last year, I motorized the rolling shutters on the southern façade of my apartment. My idea was to manage them via Home Assistant. I had a couple of automations in mind: In the evening, roll down the shutters of my bedroomIn the morning:If it's too hot outside, roll down all shuttersIf it's too cold outside, roll down all shuttersIn other cases, roll up all shutters but my bedroom's Living in France, I added the official Météo France integration.