02-05-2018 05:30 PM
I have contacted level 2 support.
For testing purpose I added another Mini as well as a Light Switch to the same rule. Both Minis turned on/off two hours early than scheduled, but the Light Switch turned on at the right time.
02-07-2018 02:18 PM
Last night my WeMo devices were updated with the latest firmware, but the time zone problem didn't go away. Today I recevied a call from level-2 support and the problem was resolved after about 40 minutes of work.
Previously I reset the WeMo Mini by unplugging the device and plugging it in while holding the power button until the white light started blinking. That didn't fix the problem after reconnecting the Mini.
The steps that actually worked were
1. In the WeMo app press the pencil (edit) icon when it's on the device list screen.
2. Select the device you want to reset.
3. Select "Reset Options."
4. Press the red "Erase All Content and Settings" button.