diff --git a/schemas/data-ingress/darwin-data/darwin-association.json b/schemas/data-ingress/darwin-data/darwin-association.json
index a0d4ace..e221ee3 100644
--- a/schemas/data-ingress/darwin-data/darwin-association.json
+++ b/schemas/data-ingress/darwin-data/darwin-association.json
@@ -73,11 +73,11 @@
                         "description": "Timings that apply to the main RID",
                         "type": "object",
                         "properties": {
-                            "wta": { "type": "string", "format": "date-time" },
-                            "wtd": { "type": "string", "format": "date-time" },
-                            "wtp": { "type": "string", "format": "date-time" },
-                            "pta": { "type": "string", "format": "date-time" },
-                            "ptd": { "type": "string", "format": "date-time" }
+                            "wta": { "type": "string" },
+                            "wtd": { "type": "string" },
+                            "wtp": { "type": "string" },
+                            "pta": { "type": "string" },
+                            "ptd": { "type": "string" }
                         }
                     },
                     "at": {
@@ -85,11 +85,11 @@
                         "description": "Timings that apply to the associated RID",
                         "type": "object",
                         "properties": {
-                            "wta": { "type": "string", "format": "date-time" },
-                            "wtd": { "type": "string", "format": "date-time" },
-                            "wtp": { "type": "string", "format": "date-time" },
-                            "pta": { "type": "string", "format": "date-time" },
-                            "ptd": { "type": "string", "format": "date-time" }
+                            "wta": { "type": "string" },
+                            "wtd": { "type": "string" },
+                            "wtp": { "type": "string" },
+                            "pta": { "type": "string" },
+                            "ptd": { "type": "string" }
                         }
                     },
                     "can": {