diff --git a/sortix/include/sortix/kernel/process.h b/sortix/include/sortix/kernel/process.h
index 376e06b3..d74ba467 100644
--- a/sortix/include/sortix/kernel/process.h
+++ b/sortix/include/sortix/kernel/process.h
@@ -147,6 +147,8 @@ public:
 	Timer alarm_timer;
 	Clock execute_clock;
 	Clock system_clock;
+	Clock child_execute_clock;
+	Clock child_system_clock;
 
 public:
 	int Execute(const char* programname, const uint8_t* program,
diff --git a/sortix/process.cpp b/sortix/process.cpp
index 450b0687..84b67bd6 100644
--- a/sortix/process.cpp
+++ b/sortix/process.cpp
@@ -437,6 +437,11 @@ namespace Sortix
 
 		thepid = zombie->pid;
 
+		// It is safe to access these clocks directly as the child process is no
+		// longer running at this point and the values are nicely frozen.
+		child_execute_clock.Advance(zombie->child_execute_clock.current_time);
+		child_system_clock.Advance(zombie->child_system_clock.current_time);
+
 		int exitstatus = zombie->exitstatus;
 		if ( exitstatus < 0 )
 			exitstatus = W_EXITCODE(128 + SIGKILL, SIGKILL);
diff --git a/sortix/time.cpp b/sortix/time.cpp
index 090203b6..2d5864fd 100644
--- a/sortix/time.cpp
+++ b/sortix/time.cpp
@@ -83,8 +83,10 @@ void OnTick(struct timespec tick_period, bool system_mode)
 	uptime_clock->Advance(tick_period);
 	Process* process = CurrentProcess();
 	process->execute_clock.Advance(tick_period);
+	process->child_execute_clock.Advance(tick_period);
 	if ( system_mode )
-		process->system_clock.Advance(tick_period);
+		process->system_clock.Advance(tick_period),
+		process->child_system_clock.Advance(tick_period);
 }
 
 void Init()
diff --git a/sortix/x86-family/time.cpp b/sortix/x86-family/time.cpp
index 9596a4ae..182d77af 100644
--- a/sortix/x86-family/time.cpp
+++ b/sortix/x86-family/time.cpp
@@ -116,6 +116,10 @@ void InitializeProcessClocks(Process* process)
 	process->execute_clock.Set(&nul_time, &tick_period);
 	process->system_clock.SetCallableFromInterrupts(true);
 	process->system_clock.Set(&nul_time, &tick_period);
+	process->child_execute_clock.Set(&nul_time, &tick_period);
+	process->child_execute_clock.SetCallableFromInterrupts(true);
+	process->child_system_clock.Set(&nul_time, &tick_period);
+	process->child_system_clock.SetCallableFromInterrupts(true);
 }
 
 void Start()