diff --git a/specs/ingestion/common/observabilityParameters.yml b/specs/ingestion/common/observabilityParameters.yml
index a3fac28f60..0cb73ca42f 100644
--- a/specs/ingestion/common/observabilityParameters.yml
+++ b/specs/ingestion/common/observabilityParameters.yml
@@ -57,3 +57,23 @@ eventSortKeys:
   type: string
   description: Used to sort the Event list endpoint.
   enum: [status, type, publishedAt]
+
+startDate:
+  name: startDate
+  in: query
+  description: >
+    The start date (in RFC3339 format) of the runs fetching window.
+
+    Defaults to 'now'-7 days if omitted. The timespan between `startDate` and `endDate` must be smaller than 7 days.
+  schema:
+    type: string
+
+endDate:
+  name: endDate
+  in: query
+  description: >
+    The end date (in RFC3339 format) of the runs fetching window.
+
+    Defaults to 'now' days if omitted. The timespan between `startDate` and `endDate` must be smaller than 7 days.
+  schema:
+    type: string
diff --git a/specs/ingestion/paths/runs/runs.yml b/specs/ingestion/paths/runs/runs.yml
index 4a9cb937b6..2976a2d388 100644
--- a/specs/ingestion/paths/runs/runs.yml
+++ b/specs/ingestion/paths/runs/runs.yml
@@ -11,6 +11,8 @@ get:
     - $ref: '../../common/observabilityParameters.yml#/taskID'
     - $ref: '../../common/observabilityParameters.yml#/runSort'
     - $ref: '../../common/parameters.yml#/order'
+    - $ref: '../../common/observabilityParameters.yml#/startDate'
+    - $ref: '../../common/observabilityParameters.yml#/endDate'
   responses:
     '200':
       description: OK