diff --git a/pkg/models/task_collection.go b/pkg/models/task_collection.go
index 70be8d744..f6a22a121 100644
--- a/pkg/models/task_collection.go
+++ b/pkg/models/task_collection.go
@@ -131,7 +131,7 @@ func getTaskFilterOptsFromCollection(tf *TaskCollection) (opts *taskOptions, err
 // @Param sort_by query string false "The sorting parameter. You can pass this multiple times to get the tasks ordered by multiple different parametes, along with `order_by`. Possible values to sort by are `id`, `title`, `description`, `done`, `done_at`, `due_date`, `created_by_id`, `list_id`, `repeat_after`, `priority`, `start_date`, `end_date`, `hex_color`, `percent_done`, `uid`, `created`, `updated`. Default is `id`."
 // @Param order_by query string false "The ordering parameter. Possible values to order by are `asc` or `desc`. Default is `asc`."
 // @Param filter_by query string false "The name of the field to filter by. Allowed values are all task properties. Task properties which are their own object require passing in the id of that entity. Accepts an array for multiple filters which will be chanied together, all supplied filter must match."
-// @Param filter_value query string false "The value to filter for."
+// @Param filter_value query string false "The value to filter for. You can use [grafana](https://grafana.com/docs/grafana/latest/dashboards/time-range-controls)- or [elasticsearch](https://www.elastic.co/guide/en/elasticsearch/reference/7.3/common-options.html#date-math)-style relative dates for all date fields like `due_date`, `start_date`, `end_date`, etc."
 // @Param filter_comparator query string false "The comparator to use for a filter. Available values are `equals`, `greater`, `greater_equals`, `less`, `less_equals`, `like` and `in`. `in` expects comma-separated values in `filter_value`. Defaults to `equals`"
 // @Param filter_concat query string false "The concatinator to use for filters. Available values are `and` or `or`. Defaults to `or`."
 // @Param filter_include_nulls query string false "If set to true the result will include filtered fields whose value is set to `null`. Available values are `true` or `false`. Defaults to `false`."
diff --git a/pkg/swagger/docs.go b/pkg/swagger/docs.go
index a893660b7..0f01e972c 100644
--- a/pkg/swagger/docs.go
+++ b/pkg/swagger/docs.go
@@ -1995,7 +1995,7 @@ var doc = `{
                     },
                     {
                         "type": "string",
-                        "description": "The value to filter for.",
+                        "description": "The value to filter for. You can use [grafana](https://grafana.com/docs/grafana/latest/dashboards/time-range-controls)- or [elasticsearch](https://www.elastic.co/guide/en/elasticsearch/reference/7.3/common-options.html#date-math)-style relative dates for all date fields like ` + "`" + `due_date` + "`" + `, ` + "`" + `start_date` + "`" + `, ` + "`" + `end_date` + "`" + `, etc.",
                         "name": "filter_value",
                         "in": "query"
                     },
diff --git a/pkg/swagger/swagger.json b/pkg/swagger/swagger.json
index 7822e8696..a94c4441a 100644
--- a/pkg/swagger/swagger.json
+++ b/pkg/swagger/swagger.json
@@ -1979,7 +1979,7 @@
                     },
                     {
                         "type": "string",
-                        "description": "The value to filter for.",
+                        "description": "The value to filter for. You can use [grafana](https://grafana.com/docs/grafana/latest/dashboards/time-range-controls)- or [elasticsearch](https://www.elastic.co/guide/en/elasticsearch/reference/7.3/common-options.html#date-math)-style relative dates for all date fields like `due_date`, `start_date`, `end_date`, etc.",
                         "name": "filter_value",
                         "in": "query"
                     },
diff --git a/pkg/swagger/swagger.yaml b/pkg/swagger/swagger.yaml
index 45f40b81b..cc83194f8 100644
--- a/pkg/swagger/swagger.yaml
+++ b/pkg/swagger/swagger.yaml
@@ -2890,7 +2890,10 @@ paths:
         in: query
         name: filter_by
         type: string
-      - description: The value to filter for.
+      - description: The value to filter for. You can use [grafana](https://grafana.com/docs/grafana/latest/dashboards/time-range-controls)-
+          or [elasticsearch](https://www.elastic.co/guide/en/elasticsearch/reference/7.3/common-options.html#date-math)-style
+          relative dates for all date fields like `due_date`, `start_date`, `end_date`,
+          etc.
         in: query
         name: filter_value
         type: string