Hi @Charlie78!
Thanks for reaching out to the community. I am sorry that your app is not letting you change the time on your Nest thermostat, but no need to worry; help is here. I need to know a few things about your thermostat in order to provide you with a better resolution.
- Does the thermostat display show any error codes or messages?
- When did the issue first occur?
- Are you using the Nest app or the Google Home app?
- Do you see a blinking LED light? If so, is it red or green?
- Have you tried any troubleshooting steps before contacting us?
I'll be waiting for your response; any additional details you can provide will be helpful.
Best regards,
Jeremy.
