diff --git a/timer/timer.android.ts b/timer/timer.android.ts
index 0f0138703..c9bf76923 100644
--- a/timer/timer.android.ts
+++ b/timer/timer.android.ts
@@ -13,10 +13,6 @@ function createHadlerAndGetId() : number {
 }
 
 export function setTimeout(callback: Function, milliseconds = 0): number {
-    if (typeof (milliseconds) !== "number") {
-        milliseconds = 0;
-    }
-
     var id = createHadlerAndGetId();
 
     var runnable = new java.lang.Runnable({
@@ -43,10 +39,6 @@ export function clearTimeout(id: number): void {
 }
 
 export function setInterval(callback: Function, milliseconds = 0): number {
-    if (typeof (milliseconds) !== "number") {
-        milliseconds = 0;
-    }
-
     var id = createHadlerAndGetId();
 
     var runnable = new java.lang.Runnable({
diff --git a/timer/timer.ios.ts b/timer/timer.ios.ts
index 492ff57a6..ff240af59 100644
--- a/timer/timer.ios.ts
+++ b/timer/timer.ios.ts
@@ -17,10 +17,6 @@ function createTimerAndGetId(callback: Function, milliseconds: number, shouldRep
 }
 
 export function setTimeout(callback: Function, milliseconds = 0): number {
-    if (typeof(milliseconds) !== "number") {
-        milliseconds = 0;
-    }
-
     return createTimerAndGetId(callback, milliseconds, false);
 }
 
@@ -32,9 +28,5 @@ export function clearTimeout(id: number): void {
 }
 
 export function setInterval(callback: Function, milliseconds = 0): number {
-    if (typeof (milliseconds) !== "number") {
-        milliseconds = 0;
-    }
-
     return createTimerAndGetId(callback, milliseconds, true);
 }