diff --git a/stdlib/ktSrc/System.kt b/stdlib/ktSrc/System.kt
new file mode 100644
index 00000000000..42c0c045ce0
--- /dev/null
+++ b/stdlib/ktSrc/System.kt
@@ -0,0 +1,10 @@
+namespace std.util
+
+/**
+Executes current block and returns elapsed time in milliseconds
+*/
+fun millisTime(block: fun() : Unit) : Long {
+    val start = System.currentTimeMillis()
+    block()
+    return System.currentTimeMillis() - start
+}
\ No newline at end of file