diff --git a/pygeoapi/schemas/config/pygeoapi-config-0.x.yml b/pygeoapi/schemas/config/pygeoapi-config-0.x.yml
index 1c5d5be9b..abcb387d0 100644
--- a/pygeoapi/schemas/config/pygeoapi-config-0.x.yml
+++ b/pygeoapi/schemas/config/pygeoapi-config-0.x.yml
@@ -416,11 +416,23 @@ properties:
                                               description: temporal reference system of features
                                               default: 'http://www.opengis.net/def/uom/ISO-8601/0/Gregorian'
                                           values:
+                                              description: |-
+                                                  Provides information about the time intervals available in the collection 
+                                                  as ISO8601 compliant dates, either as a time range specified 
+                                                  as start time / end time  (e.g. 2017-11-14T09:00Z/2017-11-14T21:00Z)  or
+                                                  as number of repetitions / start time / interval (e.g. R4/2017-11-14T21:00Z/PT3H) 
+                                                  or a list of time values (e.g.
+                                                  2017-11-14T09:00Z,2017-11-14T12:00Z,2017-11-14T15:00Z,2017-11-14T18:00Z,2017-11-14T21:00Z)
                                               type: array
-                                              description: temporal reference period values
+                                              minItems: 1
                                               items:
-                                                  type: number
-                                              minItems: 0
+                                                type: string
+                                                minItems: 1
+                                                format: date-time
+                                                nullable: true
+                                                example:
+                                                  - ["2020-11-12T12:15Z"]
+                                                  - ["2020-11-12T12:15Z","2020-11-12T12:30Z","2020-11-12T12:45Z"]
                               required:
                                   - spatial
                           providers: