...
As a result, if a user is traveling across timezones, their Dexcom data will still show their timezone (utc_offset) as their base or home timezone. If this same user has other devices in use, like Fitbit or Apple Health, that do provide updated timezone information from the user's phone, you may see different utc_offsets depending on the data source.
Scenarios that Dexcom data wouldn’t be available in their cloud
If the data isn’t available in the Dexcom API the Validic system wouldn’t be able to capture with our scheduled jobs
...