Hi,
As of now (July 2025), there is no built-in option in the Sentinel incident interface to change timestamps (such as "Created Time") to UTC. While the Logs blade (Kusto queries) offers the ability to toggle between local and UTC, this feature is unfortunately not available for the Sentinel incident view or for the Overview/Investigation interfaces.
Workarounds
- Use the API for UTC Timestamps
You're already doing this—when pulling incident data via the Microsoft Sentinel REST API, timestamps are in UTC. You can build dashboards or reports (e.g., Power BI, custom portal) that show incidents in UTC.
- Custom Workbook or Dashboard
Create a Sentinel Workbook that pulls incident data using KQL and displays timestamps in UTC. This gives your SOC team a consistent UTC view.
Other option is if you use Logic apps for incident automation etc. you could parse JSON and compose, of course it will be a problem if you have multiple customers with different timezones.