diff --git a/NodeJS_4_Timers/clearInterval.js b/NodeJS_4_Timers/clearInterval.js
new file mode 100644
index 00000000..a6913a41
--- /dev/null
+++ b/NodeJS_4_Timers/clearInterval.js
@@ -0,0 +1,6 @@
+var i = setInterval(function () {
+	console.log('I ' + new Date());
+}, 1000);
+setTimeout(function () {
+	clearInterval(i);
+}, 5000);
\ No newline at end of file
diff --git a/NodeJS_4_Timers/clearTimeout.js b/NodeJS_4_Timers/clearTimeout.js
new file mode 100644
index 00000000..e7c1025a
--- /dev/null
+++ b/NodeJS_4_Timers/clearTimeout.js
@@ -0,0 +1,7 @@
+var a = setTimeout(function () {
+	console.log('A ' + new Date());
+}, 3000);
+var b = setTimeout(function () {
+	console.log('B ' + new Date());
+}, 3000);
+clearTimeout(a);
\ No newline at end of file
diff --git a/NodeJS_4_Timers/setImmediate.js b/NodeJS_4_Timers/setImmediate.js
new file mode 100644
index 00000000..059e1d6b
--- /dev/null
+++ b/NodeJS_4_Timers/setImmediate.js
@@ -0,0 +1,5 @@
+console.log('A ' + new Date());
+setImmediate(function () {
+	console.log('I ' + new Date());
+});
+console.log('B ' + new Date());
\ No newline at end of file
diff --git a/NodeJS_4_Timers/setImmediateTime.js b/NodeJS_4_Timers/setImmediateTime.js
new file mode 100644
index 00000000..fa6262e2
--- /dev/null
+++ b/NodeJS_4_Timers/setImmediateTime.js
@@ -0,0 +1,4 @@
+console.time('I');
+setImmediate(function () {
+	console.timeEnd('I');
+});
\ No newline at end of file
diff --git a/NodeJS_4_Timers/setInterval.js b/NodeJS_4_Timers/setInterval.js
new file mode 100644
index 00000000..cb3994c0
--- /dev/null
+++ b/NodeJS_4_Timers/setInterval.js
@@ -0,0 +1,3 @@
+setInterval(function () {
+	console.log('I ' + new Date());
+}, 1000);
\ No newline at end of file
diff --git a/NodeJS_4_Timers/setTimeout.js b/NodeJS_4_Timers/setTimeout.js
new file mode 100644
index 00000000..2cf81977
--- /dev/null
+++ b/NodeJS_4_Timers/setTimeout.js
@@ -0,0 +1,4 @@
+console.log('A ' + new Date());
+setTimeout(function () {
+	console.log('B ' + new Date());
+}, 3000);
\ No newline at end of file
diff --git a/NodeJS_4_Timers/setTimeoutInterval.js b/NodeJS_4_Timers/setTimeoutInterval.js
new file mode 100644
index 00000000..fc92f990
--- /dev/null
+++ b/NodeJS_4_Timers/setTimeoutInterval.js
@@ -0,0 +1,10 @@
+var interval = function (callback, time) {
+	setTimeout(function () {
+		callback();
+		interval(callback, time);
+	}, time);
+};
+
+interval(function () {
+	console.log('R ' + new Date());
+}, 1000);
\ No newline at end of file
diff --git a/NodeJS_4_Timers/setTimeoutReverse.js b/NodeJS_4_Timers/setTimeoutReverse.js
new file mode 100644
index 00000000..2c96017d
--- /dev/null
+++ b/NodeJS_4_Timers/setTimeoutReverse.js
@@ -0,0 +1,4 @@
+setTimeout(function () {
+	console.log('B ' + new Date());
+}, 3000);
+console.log('A ' + new Date());
\ No newline at end of file
diff --git a/NodeJS_4_Timers/setTimeoutZero.js b/NodeJS_4_Timers/setTimeoutZero.js
new file mode 100644
index 00000000..469ca8d7
--- /dev/null
+++ b/NodeJS_4_Timers/setTimeoutZero.js
@@ -0,0 +1,5 @@
+console.log('A ' + new Date());
+setTimeout(function () {
+	console.log('I ' + new Date());
+}, 0);
+console.log('B ' + new Date());
\ No newline at end of file
diff --git a/NodeJS_4_Timers/setTimeoutZeroTime.js b/NodeJS_4_Timers/setTimeoutZeroTime.js
new file mode 100644
index 00000000..21ee5465
--- /dev/null
+++ b/NodeJS_4_Timers/setTimeoutZeroTime.js
@@ -0,0 +1,4 @@
+console.time('T');
+setTimeout(function () {
+	console.timeEnd('T');
+}, 0);
\ No newline at end of file