diff --git a/Userland/Libraries/LibAudio/PlaybackStream.h b/Userland/Libraries/LibAudio/PlaybackStream.h
index 0162711d9b2..847859ee03c 100644
--- a/Userland/Libraries/LibAudio/PlaybackStream.h
+++ b/Userland/Libraries/LibAudio/PlaybackStream.h
@@ -52,7 +52,7 @@ public:
     //
     // The value provided to the promise resolution will match the `total_time_played()` at the exact moment that
     // the stream was resumed.
-    virtual NonnullRefPtr<Core::ThreadedPromise<Duration>> resume() = 0;
+    virtual NonnullRefPtr<Core::ThreadedPromise<AK::Duration>> resume() = 0;
     // Completes playback of any buffered audio data and then suspends playback and buffering.
     virtual NonnullRefPtr<Core::ThreadedPromise<void>> drain_buffer_and_suspend() = 0;
     // Drops any buffered audio data and then suspends playback and buffering. This can used be to stop playback
@@ -64,7 +64,7 @@ public:
     // whenever possible.
     //
     // This function should be able to run from any thread safely.
-    virtual ErrorOr<Duration> total_time_played() = 0;
+    virtual ErrorOr<AK::Duration> total_time_played() = 0;
 
     virtual NonnullRefPtr<Core::ThreadedPromise<void>> set_volume(double volume) = 0;
 };
diff --git a/Userland/Libraries/LibAudio/PlaybackStreamAudioUnit.cpp b/Userland/Libraries/LibAudio/PlaybackStreamAudioUnit.cpp
index 88a3d16bee9..56b2d3997b5 100644
--- a/Userland/Libraries/LibAudio/PlaybackStreamAudioUnit.cpp
+++ b/Userland/Libraries/LibAudio/PlaybackStreamAudioUnit.cpp
@@ -42,14 +42,14 @@ struct AudioTask {
         Volume,
     };
 
-    void resolve(Duration time)
+    void resolve(AK::Duration time)
     {
         promise.visit(
             [](Empty) { VERIFY_NOT_REACHED(); },
             [&](NonnullRefPtr<Core::ThreadedPromise<void>>& promise) {
                 promise->resolve();
             },
-            [&](NonnullRefPtr<Core::ThreadedPromise<Duration>>& promise) {
+            [&](NonnullRefPtr<Core::ThreadedPromise<AK::Duration>>& promise) {
                 promise->resolve(move(time));
             });
     }
@@ -66,7 +66,7 @@ struct AudioTask {
     }
 
     Type type;
-    Variant<Empty, NonnullRefPtr<Core::ThreadedPromise<void>>, NonnullRefPtr<Core::ThreadedPromise<Duration>>> promise;
+    Variant<Empty, NonnullRefPtr<Core::ThreadedPromise<void>>, NonnullRefPtr<Core::ThreadedPromise<AK::Duration>>> promise;
     Optional<double> data {};
 };
 
@@ -128,9 +128,9 @@ public:
         });
     }
 
-    Duration last_sample_time() const
+    AK::Duration last_sample_time() const
     {
-        return Duration::from_milliseconds(m_last_sample_time.load());
+        return AK::Duration::from_milliseconds(m_last_sample_time.load());
     }
 
 private:
@@ -182,7 +182,7 @@ private:
             }
 
             if (error == noErr)
-                task.resolve(Duration::from_milliseconds(last_sample_time));
+                task.resolve(AK::Duration::from_milliseconds(last_sample_time));
             else
                 task.reject(error);
         }
@@ -248,9 +248,9 @@ void PlaybackStreamAudioUnit::set_underrun_callback(Function<void()>)
     // FIXME: Implement this.
 }
 
-NonnullRefPtr<Core::ThreadedPromise<Duration>> PlaybackStreamAudioUnit::resume()
+NonnullRefPtr<Core::ThreadedPromise<AK::Duration>> PlaybackStreamAudioUnit::resume()
 {
-    auto promise = Core::ThreadedPromise<Duration>::create();
+    auto promise = Core::ThreadedPromise<AK::Duration>::create();
     AudioTask task { AudioTask::Type::Play, promise };
 
     if (auto result = m_state->queue_task(move(task)); result.is_error())
@@ -281,7 +281,7 @@ NonnullRefPtr<Core::ThreadedPromise<void>> PlaybackStreamAudioUnit::discard_buff
     return promise;
 }
 
-ErrorOr<Duration> PlaybackStreamAudioUnit::total_time_played()
+ErrorOr<AK::Duration> PlaybackStreamAudioUnit::total_time_played()
 {
     return m_state->last_sample_time();
 }
diff --git a/Userland/Libraries/LibAudio/PlaybackStreamAudioUnit.h b/Userland/Libraries/LibAudio/PlaybackStreamAudioUnit.h
index 3bb11eb1fa2..c4650147ba8 100644
--- a/Userland/Libraries/LibAudio/PlaybackStreamAudioUnit.h
+++ b/Userland/Libraries/LibAudio/PlaybackStreamAudioUnit.h
@@ -21,11 +21,11 @@ public:
 
     virtual void set_underrun_callback(Function<void()>) override;
 
-    virtual NonnullRefPtr<Core::ThreadedPromise<Duration>> resume() override;
+    virtual NonnullRefPtr<Core::ThreadedPromise<AK::Duration>> resume() override;
     virtual NonnullRefPtr<Core::ThreadedPromise<void>> drain_buffer_and_suspend() override;
     virtual NonnullRefPtr<Core::ThreadedPromise<void>> discard_buffer_and_suspend() override;
 
-    virtual ErrorOr<Duration> total_time_played() override;
+    virtual ErrorOr<AK::Duration> total_time_played() override;
 
     virtual NonnullRefPtr<Core::ThreadedPromise<void>> set_volume(double) override;
 
diff --git a/Userland/Libraries/LibAudio/PlaybackStreamPulseAudio.cpp b/Userland/Libraries/LibAudio/PlaybackStreamPulseAudio.cpp
index 89ae851338d..4cb440751d3 100644
--- a/Userland/Libraries/LibAudio/PlaybackStreamPulseAudio.cpp
+++ b/Userland/Libraries/LibAudio/PlaybackStreamPulseAudio.cpp
@@ -77,9 +77,9 @@ void PlaybackStreamPulseAudio::set_underrun_callback(Function<void()> callback)
     });
 }
 
-NonnullRefPtr<Core::ThreadedPromise<Duration>> PlaybackStreamPulseAudio::resume()
+NonnullRefPtr<Core::ThreadedPromise<AK::Duration>> PlaybackStreamPulseAudio::resume()
 {
-    auto promise = Core::ThreadedPromise<Duration>::create();
+    auto promise = Core::ThreadedPromise<AK::Duration>::create();
     TRY_OR_REJECT(m_state->check_is_running(), promise);
     m_state->enqueue([this, promise]() {
         TRY_OR_REJECT(m_state->stream()->resume());
@@ -110,11 +110,11 @@ NonnullRefPtr<Core::ThreadedPromise<void>> PlaybackStreamPulseAudio::discard_buf
     return promise;
 }
 
-ErrorOr<Duration> PlaybackStreamPulseAudio::total_time_played()
+ErrorOr<AK::Duration> PlaybackStreamPulseAudio::total_time_played()
 {
     if (m_state->stream() != nullptr)
         return m_state->stream()->total_time_played();
-    return Duration::zero();
+    return AK::Duration::zero();
 }
 
 NonnullRefPtr<Core::ThreadedPromise<void>> PlaybackStreamPulseAudio::set_volume(double volume)
diff --git a/Userland/Libraries/LibAudio/PlaybackStreamPulseAudio.h b/Userland/Libraries/LibAudio/PlaybackStreamPulseAudio.h
index d1671944557..7b6dcc20a82 100644
--- a/Userland/Libraries/LibAudio/PlaybackStreamPulseAudio.h
+++ b/Userland/Libraries/LibAudio/PlaybackStreamPulseAudio.h
@@ -18,11 +18,11 @@ public:
 
     virtual void set_underrun_callback(Function<void()>) override;
 
-    virtual NonnullRefPtr<Core::ThreadedPromise<Duration>> resume() override;
+    virtual NonnullRefPtr<Core::ThreadedPromise<AK::Duration>> resume() override;
     virtual NonnullRefPtr<Core::ThreadedPromise<void>> drain_buffer_and_suspend() override;
     virtual NonnullRefPtr<Core::ThreadedPromise<void>> discard_buffer_and_suspend() override;
 
-    virtual ErrorOr<Duration> total_time_played() override;
+    virtual ErrorOr<AK::Duration> total_time_played() override;
 
     virtual NonnullRefPtr<Core::ThreadedPromise<void>> set_volume(double) override;
 
diff --git a/Userland/Libraries/LibAudio/PulseAudioWrappers.cpp b/Userland/Libraries/LibAudio/PulseAudioWrappers.cpp
index 1c51475716c..48d762850c8 100644
--- a/Userland/Libraries/LibAudio/PulseAudioWrappers.cpp
+++ b/Userland/Libraries/LibAudio/PulseAudioWrappers.cpp
@@ -452,7 +452,7 @@ ErrorOr<void> PulseAudioStream::resume()
     return {};
 }
 
-ErrorOr<Duration> PulseAudioStream::total_time_played()
+ErrorOr<AK::Duration> PulseAudioStream::total_time_played()
 {
     auto locker = m_context->main_loop_locker();
 
@@ -465,19 +465,19 @@ ErrorOr<Duration> PulseAudioStream::total_time_played()
     //       last-returned time. If we never call pa_stream_get_time() until after giving
     //       the stream its first samples, the issue never occurs.
     if (!m_started_playback)
-        return Duration::zero();
+        return AK::Duration::zero();
 
     pa_usec_t time = 0;
     auto error = pa_stream_get_time(m_stream, &time);
     if (error == -PA_ERR_NODATA)
-        return Duration::zero();
+        return AK::Duration::zero();
     if (error != 0)
         return Error::from_string_literal("Failed to get time from PulseAudio stream");
     if (time > NumericLimits<i64>::max()) {
         warnln("WARNING: Audio time is too large!");
         time -= NumericLimits<i64>::max();
     }
-    return Duration::from_microseconds(static_cast<i64>(time));
+    return AK::Duration::from_microseconds(static_cast<i64>(time));
 }
 
 ErrorOr<void> PulseAudioStream::set_volume(double volume)
diff --git a/Userland/Libraries/LibAudio/PulseAudioWrappers.h b/Userland/Libraries/LibAudio/PulseAudioWrappers.h
index 64e04f1eab9..ed445c89df6 100644
--- a/Userland/Libraries/LibAudio/PulseAudioWrappers.h
+++ b/Userland/Libraries/LibAudio/PulseAudioWrappers.h
@@ -118,7 +118,7 @@ public:
     // Uncorks the stream and forces data to be written to the buffers to force playback to
     // resume as soon as possible.
     ErrorOr<void> resume();
-    ErrorOr<Duration> total_time_played();
+    ErrorOr<AK::Duration> total_time_played();
 
     ErrorOr<void> set_volume(double volume);