diff --git a/src/js/actions.ts b/src/js/actions.ts
index 11705dbd..0ece97c1 100644
--- a/src/js/actions.ts
+++ b/src/js/actions.ts
@@ -113,7 +113,7 @@ export default class Actions {
         this.manipulateAndSet(
           lastPicked,
           Unit.hours,
-          this.dates.lastPicked.hours >= 12 ? -12 : 12
+          lastPicked.hours >= 12 ? -12 : 12
         );
         break;
       case ActionTypes.togglePicker:
diff --git a/test/actions.test.ts b/test/actions.test.ts
index 61625bc3..157eddbc 100644
--- a/test/actions.test.ts
+++ b/test/actions.test.ts
@@ -410,6 +410,14 @@ test('toggleMeridiem', () => {
   expect(dates.picked).toEqual([shouldBe.manipulate(12, Unit.hours)]);
   expect(hideSpy).not.toHaveBeenCalled();
   expect(isValidSpy).toHaveBeenCalled();
+
+  //before selecting a time
+  dates.clear();
+  actions.do(event, ActionTypes.toggleMeridiem);
+  expect(setValueSpy).toHaveBeenCalled();
+  expect(dates.picked).toEqual([shouldBe.manipulate(-12, Unit.hours)]);
+  expect(hideSpy).not.toHaveBeenCalled();
+  expect(isValidSpy).toHaveBeenCalled();
 });
 
 test('togglePicker', () => {