diff --git a/packages/cli-repl/src/format-output.spec.ts b/packages/cli-repl/src/format-output.spec.ts
index 30d475f31d..7f956fa9a3 100644
--- a/packages/cli-repl/src/format-output.spec.ts
+++ b/packages/cli-repl/src/format-output.spec.ts
@@ -27,6 +27,13 @@ for (const colors of [ false, true ]) {
       });
     });
 
+    context('when the result is a date', () => {
+      it('returns the inspection', () => {
+        expect(format({ value: new Date(1234567890000) })).to.include('ISODate("2009-02-13T23:31:30.000Z")');
+        expect(format({ value: new Date(NaN) })).to.include('Invalid Date');
+      });
+    });
+
     context('when the result is a Cursor', () => {
       context('when the Cursor is not empty', () => {
         it('returns the inspection', () => {
diff --git a/packages/cli-repl/src/format-output.ts b/packages/cli-repl/src/format-output.ts
index eca50dadae..31567ad33d 100644
--- a/packages/cli-repl/src/format-output.ts
+++ b/packages/cli-repl/src/format-output.ts
@@ -214,7 +214,10 @@ function removeUndefinedValues<T>(obj: T) {
   return Object.fromEntries(Object.entries(obj).filter(keyValue => keyValue[1] !== undefined));
 }
 
-function dateInspect(this: Date): string {
+function dateInspect(this: Date, depth: number, options: any): string {
+  if (isNaN(this.valueOf())) {
+    return options.stylize('Invalid Date', 'date');
+  }
   return `ISODate("${this.toISOString()}")`;
 }