diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 884d1b2b..16079fda 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -30,6 +30,8 @@ jobs:
           yarn install --frozen-lockfile
 
       - name: Build
+        env:
+          NODE_OPTIONS: "--max-old-space-size=8192"
         run: |
           yarn build
 
diff --git a/packages/core/dev-test/config.yml b/packages/core/dev-test/config.yml
index a74e1cbb..bfbeb9c1 100644
--- a/packages/core/dev-test/config.yml
+++ b/packages/core/dev-test/config.yml
@@ -217,7 +217,7 @@ collections:
             label: Date
             widget: datetime
             format: 'MMM d, yyyy'
-            date_format: 'MMM d, yyyy'
+            time_format: false
             required: false
           - name: date_with_default
             label: Date With Deafult
diff --git a/packages/core/src/widgets/datetime/DateTimeControl.tsx b/packages/core/src/widgets/datetime/DateTimeControl.tsx
index e3c0fef4..f647874c 100644
--- a/packages/core/src/widgets/datetime/DateTimeControl.tsx
+++ b/packages/core/src/widgets/datetime/DateTimeControl.tsx
@@ -98,6 +98,14 @@ const DateTimeControl: FC<WidgetControlProps<string, DateTimeField>> = ({
       }
     }
 
+    if (timeFormat === false) {
+      return 'yyyy-MM-dd';
+    }
+
+    if (dateFormat === false) {
+      return 'HH:mm:ss.SSSXXX';
+    }
+
     return "yyyy-MM-dd'T'HH:mm:ss.SSSXXX";
   }, [dateFormat, timeFormat]);