diff --git a/tycode-cli/src/commands.rs b/tycode-cli/src/commands.rs
index 1220f46..69e700b 100644
--- a/tycode-cli/src/commands.rs
+++ b/tycode-cli/src/commands.rs
@@ -14,6 +14,19 @@ pub enum LocalCommandResult {
 
 pub fn handle_local_command(state: &mut State, input: &str) -> LocalCommandResult {
     match input.trim() {
+        "/timing" => {
+            state.show_timing = !state.show_timing;
+            LocalCommandResult::Handled {
+                msg: format!(
+                    "Timings: {}",
+                    if state.show_timing {
+                        "enabled"
+                    } else {
+                        "disabled"
+                    }
+                ),
+            }
+        }
         "/verbose" => {
             state.show_reasoning = !state.show_reasoning;
             LocalCommandResult::Handled {
diff --git a/tycode-cli/src/interactive_app.rs b/tycode-cli/src/interactive_app.rs
index ff8c646..e917081 100644
--- a/tycode-cli/src/interactive_app.rs
+++ b/tycode-cli/src/interactive_app.rs
@@ -255,6 +255,22 @@ impl InteractiveApp {
             ChatEvent::ProfilesList { .. } => {
                 // CLI handles profiles via slash commands, ignore this event
             }
+            ChatEvent::TimingUpdate {
+                waiting_for_human,
+                ai_processing,
+                tool_execution,
+            } => {
+                let total = waiting_for_human + ai_processing + tool_execution;
+                if self.state.show_timing {
+                    self.formatter.print_system(&format!(
+                        "Timing => Human: {:.1}s, AI: {:.1}s, Tools: {:.1}s, Total: {:.1}s",
+                        waiting_for_human.as_secs_f64(),
+                        ai_processing.as_secs_f64(),
+                        tool_execution.as_secs_f64(),
+                        total.as_secs_f64(),
+                    ));
+                }
+            }
         }
         Ok(())
     }
diff --git a/tycode-cli/src/state.rs b/tycode-cli/src/state.rs
index 46ff355..ffd032e 100644
--- a/tycode-cli/src/state.rs
+++ b/tycode-cli/src/state.rs
@@ -1,4 +1,5 @@
 #[derive(Default)]
 pub struct State {
     pub show_reasoning: bool,
+    pub show_timing: bool,
 }
diff --git a/tycode-core/src/chat/actor.rs b/tycode-core/src/chat/actor.rs
index 60162a8..b0ac063 100644
--- a/tycode-core/src/chat/actor.rs
+++ b/tycode-core/src/chat/actor.rs
@@ -38,11 +38,25 @@ pub enum TimingState {
     ExecutingTools,
 }
 
-#[derive(Debug, Clone)]
-pub struct TimingStats {
+#[derive(Clone, Debug, Default)]
+pub struct TimingStat {
     pub waiting_for_human: Duration,
     pub ai_processing: Duration,
     pub tool_execution: Duration,
+}
+
+impl std::ops::AddAssign for TimingStat {
+    fn add_assign(&mut self, rhs: Self) {
+        self.waiting_for_human += rhs.waiting_for_human;
+        self.ai_processing += rhs.ai_processing;
+        self.tool_execution += rhs.tool_execution;
+    }
+}
+
+#[derive(Debug, Clone)]
+pub struct TimingStats {
+    message: TimingStat,
+    session: TimingStat,
     current_state: TimingState,
     state_start: Option<Instant>,
 }
@@ -50,16 +64,15 @@ pub struct TimingStats {
 impl TimingStats {
     fn new() -> Self {
         Self {
-            waiting_for_human: Duration::ZERO,
-            ai_processing: Duration::ZERO,
-            tool_execution: Duration::ZERO,
+            message: TimingStat::default(),
+            session: TimingStat::default(),
             current_state: TimingState::Idle,
             state_start: Some(Instant::now()),
         }
     }
 
-    pub fn total_time(&self) -> Duration {
-        self.waiting_for_human + self.ai_processing + self.tool_execution
+    pub fn session(&self) -> TimingStat {
+        self.session.clone()
     }
 }
 
@@ -447,18 +460,23 @@ impl ActorState {
             let elapsed = start.elapsed();
             match self.timing_stats.current_state {
                 TimingState::WaitingForHuman => {
-                    self.timing_stats.waiting_for_human += elapsed;
+                    self.timing_stats.message.waiting_for_human += elapsed;
                 }
                 TimingState::ProcessingAI => {
-                    self.timing_stats.ai_processing += elapsed;
+                    self.timing_stats.message.ai_processing += elapsed;
                 }
                 TimingState::ExecutingTools => {
-                    self.timing_stats.tool_execution += elapsed;
+                    self.timing_stats.message.tool_execution += elapsed;
                 }
                 TimingState::Idle => {}
             }
         }
 
+        if matches!(new_state, TimingState::WaitingForHuman) {
+            let message = std::mem::replace(&mut self.timing_stats.message, TimingStat::default());
+            self.timing_stats.session += message;
+        }
+
         self.timing_stats.current_state = new_state;
         self.timing_stats.state_start = Some(Instant::now());
     }
@@ -517,6 +535,11 @@ async fn run_actor(
             }
         }
 
+        state.event_sender.send(ChatEvent::TimingUpdate {
+            waiting_for_human: state.timing_stats.message.waiting_for_human,
+            ai_processing: state.timing_stats.message.ai_processing,
+            tool_execution: state.timing_stats.message.tool_execution,
+        });
         state.event_sender.set_typing(false);
         state.transition_timing_state(TimingState::WaitingForHuman);
     }
diff --git a/tycode-core/src/chat/commands.rs b/tycode-core/src/chat/commands.rs
index dc761f8..1e6e455 100644
--- a/tycode-core/src/chat/commands.rs
+++ b/tycode-core/src/chat/commands.rs
@@ -1,7 +1,7 @@
 use crate::agents::catalog::AgentCatalog;
 use crate::ai::model::{Model, ModelCost};
 use crate::ai::{ModelSettings, ReasoningBudget, TokenUsage, ToolUseData};
-use crate::chat::actor::{create_provider, resume_session};
+use crate::chat::actor::{create_provider, resume_session, TimingStat};
 use crate::chat::ai::select_model_for_agent;
 use crate::chat::tools::{current_agent, current_agent_mut};
 use crate::chat::{
@@ -585,23 +585,28 @@ async fn handle_cost_command(state: &ActorState) -> Vec<ChatMessage> {
         message.push_str(&format!("  Average per 1K tokens: ${avg_cost_per_1k:.6}\n"));
     }
 
-    let timing = &state.timing_stats;
+    let TimingStat {
+        waiting_for_human,
+        ai_processing,
+        tool_execution,
+    } = state.timing_stats.session();
+    let total_time = waiting_for_human + ai_processing + tool_execution;
     message.push_str("\nTime Spent:\n");
     message.push_str(&format!(
         "  Waiting for human: {:>6.1}s\n",
-        timing.waiting_for_human.as_secs_f64()
+        waiting_for_human.as_secs_f64()
     ));
     message.push_str(&format!(
         "  AI processing:     {:>6.1}s\n",
-        timing.ai_processing.as_secs_f64()
+        ai_processing.as_secs_f64()
     ));
     message.push_str(&format!(
         "  Tool execution:    {:>6.1}s\n",
-        timing.tool_execution.as_secs_f64()
+        tool_execution.as_secs_f64()
     ));
     message.push_str(&format!(
         "  Total session:     {:>6.1}s\n",
-        timing.total_time().as_secs_f64()
+        total_time.as_secs_f64()
     ));
 
     vec![create_message(message, MessageSender::System)]
diff --git a/tycode-core/src/chat/events.rs b/tycode-core/src/chat/events.rs
index 2d0a5d0..e1aa060 100644
--- a/tycode-core/src/chat/events.rs
+++ b/tycode-core/src/chat/events.rs
@@ -3,6 +3,7 @@ use crate::persistence::session::SessionMetadata;
 use crate::tools::tasks::TaskList;
 use chrono::Utc;
 use serde::{Deserialize, Serialize};
+use std::time::Duration;
 use tokio::sync::mpsc;
 
 /// `ChatEvent` are the messages sent from the actor - the output of the actor.
@@ -43,6 +44,11 @@ pub enum ChatEvent {
     ProfilesList {
         profiles: Vec<String>,
     },
+    TimingUpdate {
+        waiting_for_human: Duration,
+        ai_processing: Duration,
+        tool_execution: Duration,
+    },
     Error(String),
 }