[Bug]: Events from the first hour of each day inaccessible after daylight saving time ended

[lin-xianming]

Checklist

• I have updated to the latest available Frigate version.
• I have cleared the cache of my browser.
• I have tried a different browser to see if it is related to my browser.
• I have tried reproducing the issue in incognito mode to rule out problems with any third party extensions or plugins I have installed.
• I have asked the AI at https://docs.frigate.video about my issue.

Describe the problem you are having

After daylight saving time ended today, the events from the first hour of each day was moved to the previous day in the review interface and became inaccessible.

Steps to reproduce

1. Wait for DST to end
2. Observe the problem

Version

0.16.2-4d58206

In which browser(s) are you experiencing the issue with?

No response

Frigate config file

.

docker-compose file or Docker CLI command

.

Relevant Frigate log output

.

Relevant go2rtc log output

.

Operating system

Other Linux

Install method

Docker Compose

Network connection

Wired

Camera make and model

.

Screenshots of the Frigate UI's System metrics pages

.

Any other information that may be helpful

No response

[inkeep-ai-assistant[bot]]

Based on the available sources, this appears to be a timezone-related issue that has been documented in similar cases with Frigate's review interface.

The issue you're experiencing where events from the first hour of each day become inaccessible after daylight saving time ended is consistent with timezone handling problems that have been reported with Frigate's review system(1). Users in non-standard offset timezones (like UTC+5:30) have reported similar issues where the Motion review tab doesn't work correctly when the client is set to certain timezones, showing "No Preview Found" errors or displaying incorrect time ranges(1).

This specific problem with DST transitions appears to be related to how Frigate handles timezone conversions between the server time, recording timestamps, and the browser's local timezone. When DST ends, there's a one-hour shift that can cause misalignment in how review items are indexed and retrieved.

For context, the Review page displays review items on a vertical timeline with filterable previews(2). Review items are time periods where tracked objects were active, and they're designed not to overlap for a single camera(2).

While I don't have specific documentation about DST transition handling in version 0.16.2, similar timezone issues have been addressed in recent Frigate updates. You may want to:

1. Check if there are any newer versions or patches available
2. Verify your Docker container's timezone settings match your system timezone
3. Report this as a bug on the Frigate GitHub repository with your specific DST transition details

This appears to be a legitimate bug that would benefit from being tracked by the development team.

📚 Sources:

1. [Support]: Frigate 0.14 support for 30 minute offset timezones (e.g. UTC + 5.30)
2. Review

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Have another question? Just tag @inkeep.

[NickM-27]

What timezone are you in? We haven't made any changes and this has been tested and working through multiple time changes.

[lin-xianming]

The recording from the first hour of today was also inaccessible until I closed and started the entire docker container. Restarting just frigate didn't fix it.

[lin-xianming]

ok it does show up in the next day's reviews, but summary is wrong.

[lin-xianming]

/review is correct but /review/summary is wrong because last_month_query does not take into account dst

[NickM-27]

Fixed in #20770