See Google's instructions, https://support.google.com/googlenest/answer/9248184?hl=en, for explanations of the terms that @tvbcrypto mentioned, e.g., Home/Away Assist (also called Presence Sensing, depending on which model and interface you're using) and Eco Mode.
The Nest is a "smart" thermostat, meaning that on top of whatever schedule you or the condo owner has set, it also is able to try to determine whether or not you're home, and change the temperature accordingly. You can turn that presence-sensing off, or modify the "away" temperature.
Thanks for posting to the Google Nest Community forum!
@dukeuser, I wanted to stop by and see how I could help. In addition to the features above, Nest Learning Thermostat will learn your preferred temperatures throughout the day with Auto-Schedule. It'll create a schedule for you after few days of training.
Follow these steps to disable it:
Let us know if it works.
We haven't heard from you in a while so we'll be locking this thread if there is no update within 24 hours. If you have any new issues, updates or just a discussion topic, feel free to start a new thread in the Community.