diff --git a/codex-rs/app-server-client/src/lib.rs b/codex-rs/app-server-client/src/lib.rs
index 39768820de..7ff1322d72 100644
--- a/codex-rs/app-server-client/src/lib.rs
+++ b/codex-rs/app-server-client/src/lib.rs
@@ -1061,6 +1061,8 @@ mod tests {
                 status: codex_app_server_protocol::TurnStatus::Completed,
                 error: None,
             },
+            completed_at: 0,
+            duration_ms: None,
         })
     }
 
@@ -1835,6 +1837,8 @@ mod tests {
                             status: codex_app_server_protocol::TurnStatus::Completed,
                             error: None,
                         },
+                        completed_at: 0,
+                        duration_ms: None,
                     }
                 )
             )
diff --git a/codex-rs/app-server-protocol/schema/json/ServerNotification.json b/codex-rs/app-server-protocol/schema/json/ServerNotification.json
index b8b539a03b..251327a560 100644
--- a/codex-rs/app-server-protocol/schema/json/ServerNotification.json
+++ b/codex-rs/app-server-protocol/schema/json/ServerNotification.json
@@ -3566,6 +3566,19 @@
     },
     "TurnCompletedNotification": {
       "properties": {
+        "completedAt": {
+          "description": "Unix timestamp (in seconds) when the turn completed.",
+          "format": "int64",
+          "type": "integer"
+        },
+        "durationMs": {
+          "description": "Duration between turn start and completion in milliseconds, if known.",
+          "format": "int64",
+          "type": [
+            "integer",
+            "null"
+          ]
+        },
         "threadId": {
           "type": "string"
         },
@@ -3574,6 +3587,7 @@
         }
       },
       "required": [
+        "completedAt",
         "threadId",
         "turn"
       ],
@@ -3680,6 +3694,11 @@
     },
     "TurnStartedNotification": {
       "properties": {
+        "createdAt": {
+          "description": "Unix timestamp (in seconds) when the turn started.",
+          "format": "int64",
+          "type": "integer"
+        },
         "threadId": {
           "type": "string"
         },
@@ -3688,6 +3707,7 @@
         }
       },
       "required": [
+        "createdAt",
         "threadId",
         "turn"
       ],
diff --git a/codex-rs/app-server-protocol/schema/json/codex_app_server_protocol.schemas.json b/codex-rs/app-server-protocol/schema/json/codex_app_server_protocol.schemas.json
index a589903032..acc274aaff 100644
--- a/codex-rs/app-server-protocol/schema/json/codex_app_server_protocol.schemas.json
+++ b/codex-rs/app-server-protocol/schema/json/codex_app_server_protocol.schemas.json
@@ -14364,6 +14364,19 @@
       "TurnCompletedNotification": {
         "$schema": "http://json-schema.org/draft-07/schema#",
         "properties": {
+          "completedAt": {
+            "description": "Unix timestamp (in seconds) when the turn completed.",
+            "format": "int64",
+            "type": "integer"
+          },
+          "durationMs": {
+            "description": "Duration between turn start and completion in milliseconds, if known.",
+            "format": "int64",
+            "type": [
+              "integer",
+              "null"
+            ]
+          },
           "threadId": {
             "type": "string"
           },
@@ -14372,6 +14385,7 @@
           }
         },
         "required": [
+          "completedAt",
           "threadId",
           "turn"
         ],
@@ -14640,6 +14654,11 @@
       "TurnStartedNotification": {
         "$schema": "http://json-schema.org/draft-07/schema#",
         "properties": {
+          "createdAt": {
+            "description": "Unix timestamp (in seconds) when the turn started.",
+            "format": "int64",
+            "type": "integer"
+          },
           "threadId": {
             "type": "string"
           },
@@ -14648,6 +14667,7 @@
           }
         },
         "required": [
+          "createdAt",
           "threadId",
           "turn"
         ],
diff --git a/codex-rs/app-server-protocol/schema/json/codex_app_server_protocol.v2.schemas.json b/codex-rs/app-server-protocol/schema/json/codex_app_server_protocol.v2.schemas.json
index f041f8aae8..2421630d43 100644
--- a/codex-rs/app-server-protocol/schema/json/codex_app_server_protocol.v2.schemas.json
+++ b/codex-rs/app-server-protocol/schema/json/codex_app_server_protocol.v2.schemas.json
@@ -12219,6 +12219,19 @@
     "TurnCompletedNotification": {
       "$schema": "http://json-schema.org/draft-07/schema#",
       "properties": {
+        "completedAt": {
+          "description": "Unix timestamp (in seconds) when the turn completed.",
+          "format": "int64",
+          "type": "integer"
+        },
+        "durationMs": {
+          "description": "Duration between turn start and completion in milliseconds, if known.",
+          "format": "int64",
+          "type": [
+            "integer",
+            "null"
+          ]
+        },
         "threadId": {
           "type": "string"
         },
@@ -12227,6 +12240,7 @@
         }
       },
       "required": [
+        "completedAt",
         "threadId",
         "turn"
       ],
@@ -12495,6 +12509,11 @@
     "TurnStartedNotification": {
       "$schema": "http://json-schema.org/draft-07/schema#",
       "properties": {
+        "createdAt": {
+          "description": "Unix timestamp (in seconds) when the turn started.",
+          "format": "int64",
+          "type": "integer"
+        },
         "threadId": {
           "type": "string"
         },
@@ -12503,6 +12522,7 @@
         }
       },
       "required": [
+        "createdAt",
         "threadId",
         "turn"
       ],
diff --git a/codex-rs/app-server-protocol/schema/json/v2/TurnCompletedNotification.json b/codex-rs/app-server-protocol/schema/json/v2/TurnCompletedNotification.json
index 770cc920cf..3780541077 100644
--- a/codex-rs/app-server-protocol/schema/json/v2/TurnCompletedNotification.json
+++ b/codex-rs/app-server-protocol/schema/json/v2/TurnCompletedNotification.json
@@ -1559,6 +1559,19 @@
     }
   },
   "properties": {
+    "completedAt": {
+      "description": "Unix timestamp (in seconds) when the turn completed.",
+      "format": "int64",
+      "type": "integer"
+    },
+    "durationMs": {
+      "description": "Duration between turn start and completion in milliseconds, if known.",
+      "format": "int64",
+      "type": [
+        "integer",
+        "null"
+      ]
+    },
     "threadId": {
       "type": "string"
     },
@@ -1567,6 +1580,7 @@
     }
   },
   "required": [
+    "completedAt",
     "threadId",
     "turn"
   ],
diff --git a/codex-rs/app-server-protocol/schema/json/v2/TurnStartedNotification.json b/codex-rs/app-server-protocol/schema/json/v2/TurnStartedNotification.json
index 761ddc9a62..94af685a0b 100644
--- a/codex-rs/app-server-protocol/schema/json/v2/TurnStartedNotification.json
+++ b/codex-rs/app-server-protocol/schema/json/v2/TurnStartedNotification.json
@@ -1559,6 +1559,11 @@
     }
   },
   "properties": {
+    "createdAt": {
+      "description": "Unix timestamp (in seconds) when the turn started.",
+      "format": "int64",
+      "type": "integer"
+    },
     "threadId": {
       "type": "string"
     },
@@ -1567,6 +1572,7 @@
     }
   },
   "required": [
+    "createdAt",
     "threadId",
     "turn"
   ],
diff --git a/codex-rs/app-server-protocol/schema/typescript/v2/TurnCompletedNotification.ts b/codex-rs/app-server-protocol/schema/typescript/v2/TurnCompletedNotification.ts
index e1b151bfa7..fbe9e11b5a 100644
--- a/codex-rs/app-server-protocol/schema/typescript/v2/TurnCompletedNotification.ts
+++ b/codex-rs/app-server-protocol/schema/typescript/v2/TurnCompletedNotification.ts
@@ -3,4 +3,12 @@
 // This file was generated by [ts-rs](https://github.com/Aleph-Alpha/ts-rs). Do not edit this file manually.
 import type { Turn } from "./Turn";
 
-export type TurnCompletedNotification = { threadId: string, turn: Turn, };
+export type TurnCompletedNotification = { threadId: string, turn: Turn, 
+/**
+ * Unix timestamp (in seconds) when the turn completed.
+ */
+completedAt: number, 
+/**
+ * Duration between turn start and completion in milliseconds, if known.
+ */
+durationMs: number | null, };
diff --git a/codex-rs/app-server-protocol/schema/typescript/v2/TurnStartedNotification.ts b/codex-rs/app-server-protocol/schema/typescript/v2/TurnStartedNotification.ts
index 34f71b2465..8c31149506 100644
--- a/codex-rs/app-server-protocol/schema/typescript/v2/TurnStartedNotification.ts
+++ b/codex-rs/app-server-protocol/schema/typescript/v2/TurnStartedNotification.ts
@@ -3,4 +3,8 @@
 // This file was generated by [ts-rs](https://github.com/Aleph-Alpha/ts-rs). Do not edit this file manually.
 import type { Turn } from "./Turn";
 
-export type TurnStartedNotification = { threadId: string, turn: Turn, };
+export type TurnStartedNotification = { threadId: string, turn: Turn, 
+/**
+ * Unix timestamp (in seconds) when the turn started.
+ */
+createdAt: number, };
diff --git a/codex-rs/app-server-protocol/src/protocol/v2.rs b/codex-rs/app-server-protocol/src/protocol/v2.rs
index 82b568515c..538293f1f5 100644
--- a/codex-rs/app-server-protocol/src/protocol/v2.rs
+++ b/codex-rs/app-server-protocol/src/protocol/v2.rs
@@ -5043,6 +5043,9 @@ pub struct ThreadNameUpdatedNotification {
 pub struct TurnStartedNotification {
     pub thread_id: String,
     pub turn: Turn,
+    /// Unix timestamp (in seconds) when the turn started.
+    #[ts(type = "number")]
+    pub created_at: i64,
 }
 
 #[derive(Serialize, Deserialize, Debug, Clone, PartialEq, JsonSchema, TS)]
@@ -5069,6 +5072,12 @@ pub struct Usage {
 pub struct TurnCompletedNotification {
     pub thread_id: String,
     pub turn: Turn,
+    /// Unix timestamp (in seconds) when the turn completed.
+    #[ts(type = "number")]
+    pub completed_at: i64,
+    /// Duration between turn start and completion in milliseconds, if known.
+    #[ts(type = "number | null")]
+    pub duration_ms: Option<i64>,
 }
 
 #[derive(Serialize, Deserialize, Debug, Clone, PartialEq, JsonSchema, TS)]
diff --git a/codex-rs/app-server/src/bespoke_event_handling.rs b/codex-rs/app-server/src/bespoke_event_handling.rs
index 78c60b0aee..6e288da81e 100644
--- a/codex-rs/app-server/src/bespoke_event_handling.rs
+++ b/codex-rs/app-server/src/bespoke_event_handling.rs
@@ -141,6 +141,8 @@ use std::convert::TryFrom;
 use std::path::Path;
 use std::path::PathBuf;
 use std::sync::Arc;
+use std::time::SystemTime;
+use std::time::UNIX_EPOCH;
 use tokio::sync::Mutex;
 use tokio::sync::oneshot;
 use tracing::error;
@@ -289,6 +291,7 @@ pub(crate) async fn apply_bespoke_event_handling(
                 let notification = TurnStartedNotification {
                     thread_id: conversation_id.to_string(),
                     turn,
+                    created_at: set_turn_started_at(&thread_state).await,
                 };
                 outgoing
                     .send_server_notification(ServerNotification::TurnStarted(notification))
@@ -1947,8 +1950,10 @@ async fn emit_turn_completed_with_status(
     event_turn_id: String,
     status: TurnStatus,
     error: Option<TurnError>,
+    started_at_ms: Option<i64>,
     outgoing: &ThreadScopedOutgoingMessageSender,
 ) {
+    let completed_at_ms = now_unix_timestamp_millis();
     let notification = TurnCompletedNotification {
         thread_id: conversation_id.to_string(),
         turn: Turn {
@@ -1957,6 +1962,9 @@ async fn emit_turn_completed_with_status(
             error,
             status,
         },
+        completed_at: completed_at_ms / 1000,
+        duration_ms: started_at_ms
+            .map(|started_at_ms| completed_at_ms.saturating_sub(started_at_ms)),
     };
     outgoing
         .send_server_notification(ServerNotification::TurnCompleted(notification))
@@ -2105,13 +2113,22 @@ async fn handle_turn_complete(
     thread_state: &Arc<Mutex<ThreadState>>,
 ) {
     let turn_summary = find_and_remove_turn_summary(conversation_id, thread_state).await;
+    let started_at_ms = turn_summary.started_at_ms;
 
     let (status, error) = match turn_summary.last_error {
         Some(error) => (TurnStatus::Failed, Some(error)),
         None => (TurnStatus::Completed, None),
     };
 
-    emit_turn_completed_with_status(conversation_id, event_turn_id, status, error, outgoing).await;
+    emit_turn_completed_with_status(
+        conversation_id,
+        event_turn_id,
+        status,
+        error,
+        started_at_ms,
+        outgoing,
+    )
+    .await;
 }
 
 async fn handle_turn_interrupted(
@@ -2120,18 +2137,33 @@ async fn handle_turn_interrupted(
     outgoing: &ThreadScopedOutgoingMessageSender,
     thread_state: &Arc<Mutex<ThreadState>>,
 ) {
-    find_and_remove_turn_summary(conversation_id, thread_state).await;
+    let turn_summary = find_and_remove_turn_summary(conversation_id, thread_state).await;
 
     emit_turn_completed_with_status(
         conversation_id,
         event_turn_id,
         TurnStatus::Interrupted,
         /*error*/ None,
+        turn_summary.started_at_ms,
         outgoing,
     )
     .await;
 }
 
+async fn set_turn_started_at(thread_state: &Arc<Mutex<ThreadState>>) -> i64 {
+    let started_at_ms = now_unix_timestamp_millis();
+    let mut state = thread_state.lock().await;
+    state.turn_summary.started_at_ms = Some(started_at_ms);
+    started_at_ms / 1000
+}
+
+fn now_unix_timestamp_millis() -> i64 {
+    let duration = SystemTime::now()
+        .duration_since(UNIX_EPOCH)
+        .unwrap_or_default();
+    i64::try_from(duration.as_millis()).unwrap_or(i64::MAX)
+}
+
 async fn handle_thread_rollback_failed(
     _conversation_id: ThreadId,
     message: String,
diff --git a/codex-rs/app-server/src/in_process.rs b/codex-rs/app-server/src/in_process.rs
index eda2c75da8..c2d535a126 100644
--- a/codex-rs/app-server/src/in_process.rs
+++ b/codex-rs/app-server/src/in_process.rs
@@ -824,6 +824,8 @@ mod tests {
                     status: TurnStatus::Completed,
                     error: None,
                 },
+                completed_at: 0,
+                duration_ms: None,
             })
         ));
     }
diff --git a/codex-rs/app-server/src/thread_state.rs b/codex-rs/app-server/src/thread_state.rs
index be5478dd51..e7af824009 100644
--- a/codex-rs/app-server/src/thread_state.rs
+++ b/codex-rs/app-server/src/thread_state.rs
@@ -44,6 +44,7 @@ pub(crate) enum ThreadListenerCommand {
 /// Per-conversation accumulation of the latest states e.g. error message while a turn runs.
 #[derive(Default, Clone)]
 pub(crate) struct TurnSummary {
+    pub(crate) started_at_ms: Option<i64>,
     pub(crate) file_change_started: HashSet<String>,
     pub(crate) command_execution_started: HashSet<String>,
     pub(crate) last_error: Option<TurnError>,
diff --git a/codex-rs/exec/src/event_processor_with_human_output_tests.rs b/codex-rs/exec/src/event_processor_with_human_output_tests.rs
index 2b625dd564..18d08f3bcd 100644
--- a/codex-rs/exec/src/event_processor_with_human_output_tests.rs
+++ b/codex-rs/exec/src/event_processor_with_human_output_tests.rs
@@ -157,6 +157,8 @@ fn turn_completed_recovers_final_message_from_turn_items() {
     let status = processor.process_server_notification(ServerNotification::TurnCompleted(
         codex_app_server_protocol::TurnCompletedNotification {
             thread_id: "thread-1".to_string(),
+            completed_at: 0,
+            duration_ms: None,
             turn: Turn {
                 id: "turn-1".to_string(),
                 items: vec![ThreadItem::AgentMessage {
@@ -201,6 +203,8 @@ fn turn_completed_overwrites_stale_final_message_from_turn_items() {
     let status = processor.process_server_notification(ServerNotification::TurnCompleted(
         codex_app_server_protocol::TurnCompletedNotification {
             thread_id: "thread-1".to_string(),
+            completed_at: 0,
+            duration_ms: None,
             turn: Turn {
                 id: "turn-1".to_string(),
                 items: vec![ThreadItem::AgentMessage {
@@ -246,6 +250,8 @@ fn turn_completed_preserves_streamed_final_message_when_turn_items_are_empty() {
     let status = processor.process_server_notification(ServerNotification::TurnCompleted(
         codex_app_server_protocol::TurnCompletedNotification {
             thread_id: "thread-1".to_string(),
+            completed_at: 0,
+            duration_ms: None,
             turn: Turn {
                 id: "turn-1".to_string(),
                 items: Vec::new(),
@@ -286,6 +292,8 @@ fn turn_failed_clears_stale_final_message() {
     let status = processor.process_server_notification(ServerNotification::TurnCompleted(
         codex_app_server_protocol::TurnCompletedNotification {
             thread_id: "thread-1".to_string(),
+            completed_at: 0,
+            duration_ms: None,
             turn: Turn {
                 id: "turn-1".to_string(),
                 items: Vec::new(),
@@ -327,6 +335,8 @@ fn turn_interrupted_clears_stale_final_message() {
     let status = processor.process_server_notification(ServerNotification::TurnCompleted(
         codex_app_server_protocol::TurnCompletedNotification {
             thread_id: "thread-1".to_string(),
+            completed_at: 0,
+            duration_ms: None,
             turn: Turn {
                 id: "turn-1".to_string(),
                 items: Vec::new(),
diff --git a/codex-rs/exec/src/event_processor_with_jsonl_output_tests.rs b/codex-rs/exec/src/event_processor_with_jsonl_output_tests.rs
index ffb4d1ed01..1f8a00b579 100644
--- a/codex-rs/exec/src/event_processor_with_jsonl_output_tests.rs
+++ b/codex-rs/exec/src/event_processor_with_jsonl_output_tests.rs
@@ -29,6 +29,8 @@ fn failed_turn_does_not_overwrite_output_last_message_file() {
     let status = processor.process_server_notification(ServerNotification::TurnCompleted(
         codex_app_server_protocol::TurnCompletedNotification {
             thread_id: "thread-1".to_string(),
+            completed_at: 0,
+            duration_ms: None,
             turn: codex_app_server_protocol::Turn {
                 id: "turn-1".to_string(),
                 items: Vec::new(),
diff --git a/codex-rs/exec/src/lib.rs b/codex-rs/exec/src/lib.rs
index 5a396a9810..5609fd0344 100644
--- a/codex-rs/exec/src/lib.rs
+++ b/codex-rs/exec/src/lib.rs
@@ -717,6 +717,7 @@ async fn run_exec_session(args: ExecRunArgs) -> anyhow::Result<()> {
                 TurnStartedNotification {
                     thread_id: response.review_thread_id.clone(),
                     turn: response.turn.clone(),
+                    created_at: 0,
                 },
             ));
             let task_id = response.turn.id;
diff --git a/codex-rs/exec/tests/event_processor_with_json_output.rs b/codex-rs/exec/tests/event_processor_with_json_output.rs
index 5491e895e2..ed28aa8c85 100644
--- a/codex-rs/exec/tests/event_processor_with_json_output.rs
+++ b/codex-rs/exec/tests/event_processor_with_json_output.rs
@@ -145,6 +145,7 @@ fn turn_started_emits_turn_started_event() {
                 status: TurnStatus::InProgress,
                 error: None,
             },
+            created_at: 0,
         }));
 
     assert_eq!(
@@ -1067,6 +1068,8 @@ fn plan_update_emits_started_then_updated_then_completed() {
                 status: TurnStatus::Completed,
                 error: None,
             },
+            completed_at: 0,
+            duration_ms: None,
         },
     ));
     assert_eq!(
@@ -1123,6 +1126,8 @@ fn plan_update_after_completion_starts_new_todo_list_with_new_id() {
                 status: TurnStatus::Completed,
                 error: None,
             },
+            completed_at: 0,
+            duration_ms: None,
         },
     ));
 
@@ -1202,6 +1207,8 @@ fn token_usage_update_is_emitted_on_turn_completion() {
                 status: TurnStatus::Completed,
                 error: None,
             },
+            completed_at: 0,
+            duration_ms: None,
         },
     ));
     assert_eq!(
@@ -1237,6 +1244,8 @@ fn turn_completion_recovers_final_message_from_turn_items() {
                 status: TurnStatus::Completed,
                 error: None,
             },
+            completed_at: 0,
+            duration_ms: None,
         },
     ));
 
@@ -1311,6 +1320,8 @@ fn turn_completion_reconciles_started_items_from_turn_items() {
                 status: TurnStatus::Completed,
                 error: None,
             },
+            completed_at: 0,
+            duration_ms: None,
         },
     ));
 
@@ -1368,6 +1379,8 @@ fn turn_completion_overwrites_stale_final_message_from_turn_items() {
                 status: TurnStatus::Completed,
                 error: None,
             },
+            completed_at: 0,
+            duration_ms: None,
         },
     ));
 
@@ -1408,6 +1421,8 @@ fn turn_completion_preserves_streamed_final_message_when_turn_items_are_empty()
                 status: TurnStatus::Completed,
                 error: None,
             },
+            completed_at: 0,
+            duration_ms: None,
         },
     ));
 
@@ -1456,6 +1471,8 @@ fn failed_turn_clears_stale_final_message() {
                     codex_error_info: None,
                 }),
             },
+            completed_at: 0,
+            duration_ms: None,
         },
     ));
 
@@ -1479,6 +1496,8 @@ fn turn_completion_falls_back_to_final_plan_text() {
                 status: TurnStatus::Completed,
                 error: None,
             },
+            completed_at: 0,
+            duration_ms: None,
         },
     ));
 
@@ -1527,6 +1546,8 @@ fn turn_failure_prefers_structured_error_message() {
                 status: TurnStatus::Failed,
                 error: None,
             },
+            completed_at: 0,
+            duration_ms: None,
         },
     ));
     assert_eq!(
diff --git a/codex-rs/tui/src/app.rs b/codex-rs/tui/src/app.rs
index e262b55a31..759bf52c7c 100644
--- a/codex-rs/tui/src/app.rs
+++ b/codex-rs/tui/src/app.rs
@@ -9191,6 +9191,7 @@ guardian_approval = true
         ServerNotification::TurnStarted(TurnStartedNotification {
             thread_id: thread_id.to_string(),
             turn: test_turn(turn_id, TurnStatus::InProgress, Vec::new()),
+            created_at: 0,
         })
     }
 
@@ -9202,6 +9203,8 @@ guardian_approval = true
         ServerNotification::TurnCompleted(TurnCompletedNotification {
             thread_id: thread_id.to_string(),
             turn: test_turn(turn_id, status, Vec::new()),
+            completed_at: 0,
+            duration_ms: None,
         })
     }
 
diff --git a/codex-rs/tui/src/app/app_server_adapter.rs b/codex-rs/tui/src/app/app_server_adapter.rs
index ef5a061e32..3a994353b8 100644
--- a/codex-rs/tui/src/app/app_server_adapter.rs
+++ b/codex-rs/tui/src/app/app_server_adapter.rs
@@ -1104,6 +1104,8 @@ mod tests {
                     status: TurnStatus::Completed,
                     error: None,
                 },
+                completed_at: 0,
+                duration_ms: None,
             }),
         )
         .expect("notification should bridge");
@@ -1316,6 +1318,8 @@ mod tests {
                     status: TurnStatus::Interrupted,
                     error: None,
                 },
+                completed_at: 0,
+                duration_ms: None,
             }),
         )
         .expect("notification should bridge");
@@ -1352,6 +1356,8 @@ mod tests {
                         additional_details: None,
                     }),
                 },
+                completed_at: 0,
+                duration_ms: None,
             }),
         )
         .expect("notification should bridge");
diff --git a/codex-rs/tui/src/app/pending_interactive_replay.rs b/codex-rs/tui/src/app/pending_interactive_replay.rs
index 63c8fe1249..408e4d0521 100644
--- a/codex-rs/tui/src/app/pending_interactive_replay.rs
+++ b/codex-rs/tui/src/app/pending_interactive_replay.rs
@@ -677,6 +677,8 @@ mod tests {
                 status: TurnStatus::Completed,
                 error: None,
             },
+            completed_at: 0,
+            duration_ms: None,
         })
     }
 
diff --git a/codex-rs/tui/src/chatwidget.rs b/codex-rs/tui/src/chatwidget.rs
index 02429e9d9b..63b201d111 100644
--- a/codex-rs/tui/src/chatwidget.rs
+++ b/codex-rs/tui/src/chatwidget.rs
@@ -5911,6 +5911,8 @@ impl ChatWidget {
                             status,
                             error,
                         },
+                        completed_at: 0,
+                        duration_ms: None,
                     },
                     Some(replay_kind),
                 );
diff --git a/codex-rs/tui/src/chatwidget/tests/app_server.rs b/codex-rs/tui/src/chatwidget/tests/app_server.rs
index 2cabed2cc8..a5d1a706fd 100644
--- a/codex-rs/tui/src/chatwidget/tests/app_server.rs
+++ b/codex-rs/tui/src/chatwidget/tests/app_server.rs
@@ -94,6 +94,7 @@ async fn live_app_server_turn_completed_clears_working_status_after_answer_item(
                 status: AppServerTurnStatus::InProgress,
                 error: None,
             },
+            created_at: 0,
         }),
         /*replay_kind*/ None,
     );
@@ -133,6 +134,8 @@ async fn live_app_server_turn_completed_clears_working_status_after_answer_item(
                 status: AppServerTurnStatus::Completed,
                 error: None,
             },
+            completed_at: 0,
+            duration_ms: None,
         }),
         /*replay_kind*/ None,
     );
@@ -416,6 +419,7 @@ async fn live_app_server_failed_turn_does_not_duplicate_error_history() {
                 status: AppServerTurnStatus::InProgress,
                 error: None,
             },
+            created_at: 0,
         }),
         /*replay_kind*/ None,
     );
@@ -451,6 +455,8 @@ async fn live_app_server_failed_turn_does_not_duplicate_error_history() {
                     additional_details: None,
                 }),
             },
+            completed_at: 0,
+            duration_ms: None,
         }),
         /*replay_kind*/ None,
     );
@@ -472,6 +478,7 @@ async fn live_app_server_stream_recovery_restores_previous_status_header() {
                 status: AppServerTurnStatus::InProgress,
                 error: None,
             },
+            created_at: 0,
         }),
         /*replay_kind*/ None,
     );
@@ -526,6 +533,7 @@ async fn live_app_server_server_overloaded_error_renders_warning() {
                 status: AppServerTurnStatus::InProgress,
                 error: None,
             },
+            created_at: 0,
         }),
         /*replay_kind*/ None,
     );
diff --git a/codex-rs/tui/src/chatwidget/tests/history_replay.rs b/codex-rs/tui/src/chatwidget/tests/history_replay.rs
index 58993d67e8..5fc1471f5d 100644
--- a/codex-rs/tui/src/chatwidget/tests/history_replay.rs
+++ b/codex-rs/tui/src/chatwidget/tests/history_replay.rs
@@ -537,6 +537,7 @@ async fn replayed_retryable_app_server_error_keeps_turn_running() {
                 status: AppServerTurnStatus::InProgress,
                 error: None,
             },
+            created_at: 0,
         }),
         Some(ReplayKind::ThreadSnapshot),
     );
@@ -687,6 +688,7 @@ async fn live_reasoning_summary_is_not_rendered_twice_when_item_completes() {
                 status: AppServerTurnStatus::InProgress,
                 error: None,
             },
+            created_at: 0,
         }),
         /*replay_kind*/ None,
     );
diff --git a/codex-rs/tui/src/chatwidget/tests/plan_mode.rs b/codex-rs/tui/src/chatwidget/tests/plan_mode.rs
index 265339f5d1..7b2c5d8eb6 100644
--- a/codex-rs/tui/src/chatwidget/tests/plan_mode.rs
+++ b/codex-rs/tui/src/chatwidget/tests/plan_mode.rs
@@ -851,6 +851,7 @@ async fn submit_user_message_queues_while_compaction_turn_is_running() {
                 status: AppServerTurnStatus::InProgress,
                 error: None,
             },
+            created_at: 0,
         }),
         /*replay_kind*/ None,
     );
@@ -894,6 +895,8 @@ async fn submit_user_message_queues_while_compaction_turn_is_running() {
                 status: AppServerTurnStatus::Completed,
                 error: None,
             },
+            completed_at: 0,
+            duration_ms: None,
         }),
         /*replay_kind*/ None,
     );