Workday sensor - 1 hour off

I’ve noticed today that workday sensor state changed to active at 01:00:00 which is an hour later. Is this normal behavior or my configuration is wrong?

Here’s what I have in configuration.yaml:
binary_sensor:
- platform: workday
country: SK

Whenever I troubleshoot “1 hour off” I think to check timezone & daylight savings time.

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daylight savings time on your OS?

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Timezone is set as CET which is correct. How to check daylight savings time? Logbook and logs show correct time.

Well the home Assistant page points to here.
That page indicates that CET is deprecated. Africa/Ceuta is listed as canonical for the same offsets as CET.

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So changing timezone to SK (Europe/Bratislava) should fix it? I’m not at home right now to try it out.

That might work or pick one of the Europe/* ones listed as canonical for your timezone.

For example, even though I am in Virginia, I use the canonical America/New_York timezone.

How can I check it works instead of waiting for workday sensor to change state on Friday midnight?