> For the complete documentation index, see [llms.txt](https://docs.tryterra.co/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.tryterra.co/faq/help-topics/data-api-sdk/provider-coverage-and-per-provider-data-availability/health-connect-glucose-timezone-device-data.md). # Why is Health Connect glucose missing timezone and device\_data? For Health Connect glucose, timestamps are sent as the **UTC instant without a timezone suffix**, so parse them as UTC and apply the user's timezone yourself. Device metadata fields are empty for two reasons: * The Android SDK does not currently pull manufacturer/model off the Health Connect glucose record. * `serial`, software/hardware version and activation date are not exposed by Health Connect at all, so they stay `null`. Other body sample types inherit the device timezone, so this field behaves differently for glucose. --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.tryterra.co/faq/help-topics/data-api-sdk/provider-coverage-and-per-provider-data-availability/health-connect-glucose-timezone-device-data.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.