diff --git a/types/webpack/index.d.ts b/types/webpack/index.d.ts
index fe3dc638e1..d540a165c4 100644
--- a/types/webpack/index.d.ts
+++ b/types/webpack/index.d.ts
@@ -1131,8 +1131,8 @@ declare namespace webpack {
     abstract class Stats {
         compilation: compilation.Compilation;
         hash?: string;
-        startTime?: Date;
-        endTime?: Date;
+        startTime?: number;
+        endTime?: number;
         /** Returns true if there were errors while compiling. */
         hasErrors(): boolean;
         /** Returns true if there were warnings while compiling. */
diff --git a/types/webpack/webpack-tests.ts b/types/webpack/webpack-tests.ts
index 487d28b8f6..6c8bd52ba7 100644
--- a/types/webpack/webpack-tests.ts
+++ b/types/webpack/webpack-tests.ts
@@ -895,3 +895,11 @@ profiling = new webpack.debug.ProfilingPlugin({ outputPath: './path.json' });
 configuration = {
     plugins: [profiling]
 };
+
+compiler.hooks.done.tap('foo', stats => {
+  if (stats.startTime === undefined || stats.endTime === undefined) {
+    throw new Error('Well, this is odd');
+  }
+
+  console.log(`Compiled in ${stats.endTime - stats.startTime}ms`);
+});