Modifying field attribute "max_unit=" in sys_dictionary does not effect unit of measurement in reportingDescriptionWhen modifying the max_unit=hours on a particular field does not apply to reporting. This will however modify the field to render in only hours for list and form views. This PRB has been closed as it is considered as Product Enhancement. You can raise an enhancement request in Hi using the Service Catalog item, but this does not guarantee the request will be developed, as you may already know. Several factors contribute to the overall prioritization of an enhancement request. Even those we believe to be great ideas do not necessarily become part of the product, you can more details on raising enhancement request here : Requesting ServiceNow product enhancements Steps to Reproduce Navigate to the duration column on metric_instanceAdd the attribute "max_unit=hours"Navigate to list view of metric_instance and include duration field, it will render in only hoursNavigate to a View / Run reportsCreate a new bar chart on metric_instance, group by "Field, Aggregation = Average DurationChart will render in Days Hours Minutes, instead of hoursWorkaroundNo workaround available, since the "max_unit=" logic has never been applied to reportingRelated Problem: PRB595528