Update semantic-models.md

website/docs/docs/build/semantic-models.md

@@ -233,7 +233,7 @@ MetricFlow takes a dynamic approach when making dimensions available for metrics
 
 Dimensions have the following characteristics:
 
-- There are two types of dimensions: categorical and time. Categorical dimensions are for things you can't measure in numbers, while time dimensions represent dates.
+- There are two types of dimensions: categorical and time. Categorical dimensions are for things you can't measure in numbers, while time dimensions represent dates and timestamps.
 - Dimensions are bound to the primary entity of the semantic model in which they are defined. For example, if a dimension called `full_name` is defined in a model with `user` as a primary entity, then `full_name` is scoped to the `user` entity. To reference this dimension, you would use the fully qualified dimension name `user__full_name`.
 - The naming of dimensions must be unique in each semantic model with the same primary entity. Dimension names can be repeated if defined in semantic models with a different primary entity.