For in-person studies, you'll probably want to disable automatic time zone detection for respondents. This will ensure nobody who is traveling or using a VPN will get an invite with a different timezone. You can do that from an option inside the scheduling question. This forces all respondents to view and select times in the timezone where you're doing your in-person study.
Step 1: Verify timezone
Head to account >> profile and make sure your timezone, as the owner of the screener, is set to the time zone of your in-person study. If you are not the owner of the screener, your timezone will not be reflected in the scheduling times for respondents. This is really important for in-person studies where you are locking the timezone, because you may not have noticed who the screener owner was in other workflows in Ethnio.
Step 2: Lock the timezone
In screeners >> questions, open your scheduling question and scroll down to options. Then flip this toggle to "Yes"
Step 3: Check language
Head over to scheduling >> settings and check #4 to make sure you like the language. Respondents will only see this when timezone is locked.