I have discovered the issue, when setting up it has been setup to GMT as I live in the UK, however, the UK is currently at GMT+1 due to daylight savings, so the time is 1 hour out.
This is going to be a bit of a nightmare when the hour changes back next month.
Usually, once you set the Time Zone, it should track Daylight Savings Time correctly. Having said that, allow me to emphasize the word “should”! Last spring they had some issues with the transition.
I have just discovered the very same issue with the Smart Lighting app. I have to set specific time triggers one hour ahead. Sunset and Sunrise times within the app seem to be behaving accurately though.
It seems to be confined to the Smart Lighting app as when I set routines to change modes and lights at a specific time, the times for those appear to be correct.