diff --git a/libraries/stdlib/src/kotlin/time/Duration.kt b/libraries/stdlib/src/kotlin/time/Duration.kt
index 07b2d5f843f..9ca6a94d3bb 100644
--- a/libraries/stdlib/src/kotlin/time/Duration.kt
+++ b/libraries/stdlib/src/kotlin/time/Duration.kt
@@ -100,6 +100,10 @@ public inline class Duration internal constructor(internal val _value: Double) :
     val inMicroseconds: Double get() = toDouble(DurationUnit.MICROSECONDS)
     val inNanoseconds: Double get() = toDouble(DurationUnit.NANOSECONDS)
 
+    // shortcuts
+
+    fun toLongNanoseconds(): Long = toLong(DurationUnit.NANOSECONDS)
+    fun toLongMilliseconds(): Long = toLong(DurationUnit.MILLISECONDS)
 
     override fun toString(): String = buildString {
         if (isInfinite()) {
diff --git a/libraries/stdlib/test/time/DurationTest.kt b/libraries/stdlib/test/time/DurationTest.kt
index 243f2fb1f3c..95eb9e7b4b0 100644
--- a/libraries/stdlib/test/time/DurationTest.kt
+++ b/libraries/stdlib/test/time/DurationTest.kt
@@ -113,6 +113,12 @@ class DurationTest {
 
         assertEquals(0.0, Duration.ZERO.inNanoseconds)
 
+        assertEquals(10500, 10.5.seconds.toLongMilliseconds())
+        assertEquals(11, 11.5.milliseconds.toLongMilliseconds())
+        assertEquals(-11, (-11.5).milliseconds.toLongMilliseconds())
+        assertEquals(252_000_000, 252.milliseconds.toLongNanoseconds())
+        assertEquals(Long.MAX_VALUE, (365.days * 293).toLongNanoseconds()) // clamping overflowed value
+
         repeat(100) {
             val value = Random.nextLong(1000)
             val unit = units.random()