diff --git a/codex-rs/tui/src/chatwidget.rs b/codex-rs/tui/src/chatwidget.rs
index a004c472f89..7f0a4d410c8 100644
--- a/codex-rs/tui/src/chatwidget.rs
+++ b/codex-rs/tui/src/chatwidget.rs
@@ -484,6 +484,11 @@ pub(crate) struct ChatWidget {
     // This gates rendering of the "Worked for …" separator so purely conversational turns don't
     // show an empty divider. It is reset when the separator is emitted.
     had_work_activity: bool,
+    // Status-indicator elapsed seconds captured at the last emitted final-message separator.
+    //
+    // This lets the separator show per-chunk work time (since the previous separator) rather than
+    // the total task-running time reported by the status indicator.
+    last_separator_elapsed_secs: Option<u64>,
 
     last_rendered_width: std::cell::Cell<Option<usize>>,
     // Feedback sink for /feedback
@@ -1528,7 +1533,8 @@ impl ChatWidget {
                 let elapsed_seconds = self
                     .bottom_pane
                     .status_widget()
-                    .map(super::status_indicator_widget::StatusIndicatorWidget::elapsed_seconds);
+                    .map(super::status_indicator_widget::StatusIndicatorWidget::elapsed_seconds)
+                    .map(|current| self.worked_elapsed_from(current));
                 self.add_to_history(history_cell::FinalMessageSeparator::new(elapsed_seconds));
                 self.needs_final_message_separator = false;
                 self.had_work_activity = false;
@@ -1548,6 +1554,17 @@ impl ChatWidget {
         self.request_redraw();
     }
 
+    fn worked_elapsed_from(&mut self, current_elapsed: u64) -> u64 {
+        let baseline = match self.last_separator_elapsed_secs {
+            Some(last) if current_elapsed < last => 0,
+            Some(last) => last,
+            None => 0,
+        };
+        let elapsed = current_elapsed.saturating_sub(baseline);
+        self.last_separator_elapsed_secs = Some(current_elapsed);
+        elapsed
+    }
+
     pub(crate) fn handle_exec_end_now(&mut self, ev: ExecCommandEndEvent) {
         let running = self.running_commands.remove(&ev.call_id);
         if self.suppressed_exec_calls.remove(&ev.call_id) {
@@ -1884,6 +1901,7 @@ impl ChatWidget {
             pre_review_token_info: None,
             needs_final_message_separator: false,
             had_work_activity: false,
+            last_separator_elapsed_secs: None,
             last_rendered_width: std::cell::Cell::new(None),
             feedback,
             current_rollout_path: None,
@@ -1998,6 +2016,7 @@ impl ChatWidget {
             pre_review_token_info: None,
             needs_final_message_separator: false,
             had_work_activity: false,
+            last_separator_elapsed_secs: None,
             last_rendered_width: std::cell::Cell::new(None),
             feedback,
             current_rollout_path: None,
diff --git a/codex-rs/tui/src/chatwidget/tests.rs b/codex-rs/tui/src/chatwidget/tests.rs
index 0610a640c76..8ec734ee43a 100644
--- a/codex-rs/tui/src/chatwidget/tests.rs
+++ b/codex-rs/tui/src/chatwidget/tests.rs
@@ -817,6 +817,7 @@ async fn make_chatwidget_manual(
         pre_review_token_info: None,
         needs_final_message_separator: false,
         had_work_activity: false,
+        last_separator_elapsed_secs: None,
         last_rendered_width: std::cell::Cell::new(None),
         feedback: codex_feedback::CodexFeedback::new(),
         current_rollout_path: None,
@@ -847,6 +848,16 @@ fn set_chatgpt_auth(chat: &mut ChatWidget) {
     ));
 }
 
+#[tokio::test]
+async fn worked_elapsed_from_resets_when_timer_restarts() {
+    let (mut chat, _rx, _op_rx) = make_chatwidget_manual(None).await;
+    assert_eq!(chat.worked_elapsed_from(5), 5);
+    assert_eq!(chat.worked_elapsed_from(9), 4);
+    // Simulate status timer resetting (e.g., status indicator recreated for a new task).
+    assert_eq!(chat.worked_elapsed_from(3), 3);
+    assert_eq!(chat.worked_elapsed_from(7), 4);
+}
+
 pub(crate) async fn make_chatwidget_manual_with_sender() -> (
     ChatWidget,
     AppEventSender,
diff --git a/codex-rs/tui2/src/chatwidget.rs b/codex-rs/tui2/src/chatwidget.rs
index 9888128baa1..7921ccf4455 100644
--- a/codex-rs/tui2/src/chatwidget.rs
+++ b/codex-rs/tui2/src/chatwidget.rs
@@ -430,6 +430,11 @@ pub(crate) struct ChatWidget {
     // This gates rendering of the "Worked for …" separator so purely conversational turns don't
     // show an empty divider. It is reset when the separator is emitted.
     had_work_activity: bool,
+    // Status-indicator elapsed seconds captured at the last emitted final-message separator.
+    //
+    // This lets the separator show per-chunk work time (since the previous separator) rather than
+    // the total task-running time reported by the status indicator.
+    last_separator_elapsed_secs: Option<u64>,
 
     last_rendered_width: std::cell::Cell<Option<usize>>,
     // Feedback sink for /feedback
@@ -1330,7 +1335,8 @@ impl ChatWidget {
                 let elapsed_seconds = self
                     .bottom_pane
                     .status_widget()
-                    .map(super::status_indicator_widget::StatusIndicatorWidget::elapsed_seconds);
+                    .map(super::status_indicator_widget::StatusIndicatorWidget::elapsed_seconds)
+                    .map(|current| self.worked_elapsed_from(current));
                 self.add_to_history(history_cell::FinalMessageSeparator::new(elapsed_seconds));
                 self.needs_final_message_separator = false;
                 self.had_work_activity = false;
@@ -1353,6 +1359,17 @@ impl ChatWidget {
         }
     }
 
+    fn worked_elapsed_from(&mut self, current_elapsed: u64) -> u64 {
+        let baseline = match self.last_separator_elapsed_secs {
+            Some(last) if current_elapsed < last => 0,
+            Some(last) => last,
+            None => 0,
+        };
+        let elapsed = current_elapsed.saturating_sub(baseline);
+        self.last_separator_elapsed_secs = Some(current_elapsed);
+        elapsed
+    }
+
     pub(crate) fn handle_exec_end_now(&mut self, ev: ExecCommandEndEvent) {
         let running = self.running_commands.remove(&ev.call_id);
         if self.suppressed_exec_calls.remove(&ev.call_id) {
@@ -1686,6 +1703,7 @@ impl ChatWidget {
             pre_review_token_info: None,
             needs_final_message_separator: false,
             had_work_activity: false,
+            last_separator_elapsed_secs: None,
             last_rendered_width: std::cell::Cell::new(None),
             feedback,
             current_rollout_path: None,
@@ -1798,6 +1816,7 @@ impl ChatWidget {
             pre_review_token_info: None,
             needs_final_message_separator: false,
             had_work_activity: false,
+            last_separator_elapsed_secs: None,
             last_rendered_width: std::cell::Cell::new(None),
             feedback,
             current_rollout_path: None,
diff --git a/codex-rs/tui2/src/chatwidget/tests.rs b/codex-rs/tui2/src/chatwidget/tests.rs
index 005b015a677..01f7a239f3d 100644
--- a/codex-rs/tui2/src/chatwidget/tests.rs
+++ b/codex-rs/tui2/src/chatwidget/tests.rs
@@ -804,6 +804,7 @@ async fn make_chatwidget_manual(
         pre_review_token_info: None,
         needs_final_message_separator: false,
         had_work_activity: false,
+        last_separator_elapsed_secs: None,
         last_rendered_width: std::cell::Cell::new(None),
         feedback: codex_feedback::CodexFeedback::new(),
         current_rollout_path: None,
@@ -833,6 +834,16 @@ fn set_chatgpt_auth(chat: &mut ChatWidget) {
     ));
 }
 
+#[tokio::test]
+async fn worked_elapsed_from_resets_when_timer_restarts() {
+    let (mut chat, _rx, _op_rx) = make_chatwidget_manual(None).await;
+    assert_eq!(chat.worked_elapsed_from(5), 5);
+    assert_eq!(chat.worked_elapsed_from(9), 4);
+    // Simulate status timer resetting (e.g., status indicator recreated for a new task).
+    assert_eq!(chat.worked_elapsed_from(3), 3);
+    assert_eq!(chat.worked_elapsed_from(7), 4);
+}
+
 pub(crate) async fn make_chatwidget_manual_with_sender() -> (
     ChatWidget,
     AppEventSender,