diff --git a/Userland/Libraries/LibCore/ElapsedTimer.cpp b/Userland/Libraries/LibCore/ElapsedTimer.cpp
index e4dd994759f..aef9694efb7 100644
--- a/Userland/Libraries/LibCore/ElapsedTimer.cpp
+++ b/Userland/Libraries/LibCore/ElapsedTimer.cpp
@@ -33,7 +33,7 @@ i64 ElapsedTimer::elapsed_milliseconds() const
     return elapsed_time().to_milliseconds();
 }
 
-Duration ElapsedTimer::elapsed_time() const
+AK::Duration ElapsedTimer::elapsed_time() const
 {
     VERIFY(is_valid());
     auto now = m_timer_type == TimerType::Precise ? MonotonicTime::now() : MonotonicTime::now_coarse();
diff --git a/Userland/Libraries/LibCore/ElapsedTimer.h b/Userland/Libraries/LibCore/ElapsedTimer.h
index 716943cad90..b2157e66c31 100644
--- a/Userland/Libraries/LibCore/ElapsedTimer.h
+++ b/Userland/Libraries/LibCore/ElapsedTimer.h
@@ -29,7 +29,7 @@ public:
     void reset();
 
     i64 elapsed_milliseconds() const;
-    Duration elapsed_time() const;
+    AK::Duration elapsed_time() const;
 
     // FIXME: Move callers to elapsed_milliseconds(), remove this.
     i64 elapsed() const // milliseconds
diff --git a/Userland/Libraries/LibCore/EventLoopImplementationUnix.cpp b/Userland/Libraries/LibCore/EventLoopImplementationUnix.cpp
index 88ea5c7f122..562d21873d3 100644
--- a/Userland/Libraries/LibCore/EventLoopImplementationUnix.cpp
+++ b/Userland/Libraries/LibCore/EventLoopImplementationUnix.cpp
@@ -71,7 +71,7 @@ public:
 
 protected:
     union {
-        Duration m_duration;
+        AK::Duration m_duration;
         MonotonicTime m_fire_time;
     };
 
@@ -209,7 +209,7 @@ public:
             ThreadEventQueue::current().post_event(*strong_owner, make<TimerEvent>());
     }
 
-    Duration interval;
+    AK::Duration interval;
     bool should_reload { false };
     TimerShouldFireWhenNotVisible fire_when_not_visible { TimerShouldFireWhenNotVisible::No };
     WeakPtr<EventReceiver> owner;
@@ -367,7 +367,7 @@ retry:
         if (next_timer_expiration.has_value()) {
             auto computed_timeout = next_timer_expiration.value() - time_at_iteration_start;
             if (computed_timeout.is_negative())
-                computed_timeout = Duration::zero();
+                computed_timeout = AK::Duration::zero();
             i64 true_timeout = computed_timeout.to_milliseconds();
             timeout = static_cast<i32>(min<i64>(AK::NumericLimits<i32>::max(), true_timeout));
         } else {
@@ -651,7 +651,7 @@ intptr_t EventLoopManagerUnix::register_timer(EventReceiver& object, int millise
     auto timer = new EventLoopTimer;
     timer->owner_thread = s_thread_id;
     timer->owner = object;
-    timer->interval = Duration::from_milliseconds(milliseconds);
+    timer->interval = AK::Duration::from_milliseconds(milliseconds);
     timer->reload(MonotonicTime::now_coarse());
     timer->should_reload = should_reload;
     timer->fire_when_not_visible = fire_when_not_visible;
diff --git a/Userland/Libraries/LibCore/Platform/ProcessStatisticsMach.cpp b/Userland/Libraries/LibCore/Platform/ProcessStatisticsMach.cpp
index 5d1d36e1db3..b40d9d5e800 100644
--- a/Userland/Libraries/LibCore/Platform/ProcessStatisticsMach.cpp
+++ b/Userland/Libraries/LibCore/Platform/ProcessStatisticsMach.cpp
@@ -61,15 +61,15 @@ ErrorOr<void> update_process_statistics(ProcessStatistics& statistics)
         }
 
         timeval scratch_timeval = { static_cast<time_t>(time_info.user_time.seconds), static_cast<suseconds_t>(time_info.user_time.microseconds) };
-        auto time_in_process = Duration::from_timeval(scratch_timeval);
+        auto time_in_process = AK::Duration::from_timeval(scratch_timeval);
         scratch_timeval = { static_cast<time_t>(time_info.system_time.seconds), static_cast<suseconds_t>(time_info.system_time.microseconds) };
-        time_in_process += Duration::from_timeval(scratch_timeval);
+        time_in_process += AK::Duration::from_timeval(scratch_timeval);
 
-        auto time_diff_process = time_in_process - Duration::from_microseconds(process->time_spent_in_process);
+        auto time_diff_process = time_in_process - AK::Duration::from_microseconds(process->time_spent_in_process);
         process->time_spent_in_process = time_in_process.to_microseconds();
 
         process->cpu_percent = 0.0f;
-        if (time_diff_process > Duration::zero())
+        if (time_diff_process > AK::Duration::zero())
             process->cpu_percent = 100.0f * static_cast<float>(time_diff_process.to_microseconds()) / total_cpu_micro_diff;
     }
 
diff --git a/Userland/Libraries/LibCore/Socket.cpp b/Userland/Libraries/LibCore/Socket.cpp
index 7dc777b8c5a..6369d4f5dae 100644
--- a/Userland/Libraries/LibCore/Socket.cpp
+++ b/Userland/Libraries/LibCore/Socket.cpp
@@ -200,7 +200,7 @@ ErrorOr<void> PosixSocketHelper::set_close_on_exec(bool enabled)
     return {};
 }
 
-ErrorOr<void> PosixSocketHelper::set_receive_timeout(Duration timeout)
+ErrorOr<void> PosixSocketHelper::set_receive_timeout(AK::Duration timeout)
 {
     auto timeout_spec = timeout.to_timespec();
     return System::setsockopt(m_fd, SOL_SOCKET, SO_RCVTIMEO, &timeout_spec, sizeof(timeout_spec));
@@ -259,14 +259,14 @@ ErrorOr<size_t> PosixSocketHelper::pending_bytes() const
     return static_cast<size_t>(value);
 }
 
-ErrorOr<NonnullOwnPtr<UDPSocket>> UDPSocket::connect(ByteString const& host, u16 port, Optional<Duration> timeout)
+ErrorOr<NonnullOwnPtr<UDPSocket>> UDPSocket::connect(ByteString const& host, u16 port, Optional<AK::Duration> timeout)
 {
     auto ip_address = TRY(resolve_host(host, SocketType::Datagram));
 
     return ip_address.visit([port, timeout](auto address) { return connect(SocketAddress { address, port }, timeout); });
 }
 
-ErrorOr<NonnullOwnPtr<UDPSocket>> UDPSocket::connect(SocketAddress const& address, Optional<Duration> timeout)
+ErrorOr<NonnullOwnPtr<UDPSocket>> UDPSocket::connect(SocketAddress const& address, Optional<AK::Duration> timeout)
 {
     auto socket = TRY(adopt_nonnull_own_or_enomem(new (nothrow) UDPSocket()));
 
diff --git a/Userland/Libraries/LibCore/Socket.h b/Userland/Libraries/LibCore/Socket.h
index bcac9803ea7..5159d3e1190 100644
--- a/Userland/Libraries/LibCore/Socket.h
+++ b/Userland/Libraries/LibCore/Socket.h
@@ -144,7 +144,7 @@ public:
 
     ErrorOr<void> set_blocking(bool enabled);
     ErrorOr<void> set_close_on_exec(bool enabled);
-    ErrorOr<void> set_receive_timeout(Duration timeout);
+    ErrorOr<void> set_receive_timeout(AK::Duration timeout);
 
     void setup_notifier();
     RefPtr<Core::Notifier> notifier() { return m_notifier; }
@@ -218,8 +218,8 @@ private:
 
 class UDPSocket final : public Socket {
 public:
-    static ErrorOr<NonnullOwnPtr<UDPSocket>> connect(ByteString const& host, u16 port, Optional<Duration> timeout = {});
-    static ErrorOr<NonnullOwnPtr<UDPSocket>> connect(SocketAddress const& address, Optional<Duration> timeout = {});
+    static ErrorOr<NonnullOwnPtr<UDPSocket>> connect(ByteString const& host, u16 port, Optional<AK::Duration> timeout = {});
+    static ErrorOr<NonnullOwnPtr<UDPSocket>> connect(SocketAddress const& address, Optional<AK::Duration> timeout = {});
 
     UDPSocket(UDPSocket&& other)
         : Socket(static_cast<Socket&&>(other))