diff --git a/Lib/profiling/sampling/_flamegraph_assets/flamegraph.js b/Lib/profiling/sampling/_flamegraph_assets/flamegraph.js
index 166c03d03fbe5b..d7a8890d4a1ad9 100644
--- a/Lib/profiling/sampling/_flamegraph_assets/flamegraph.js
+++ b/Lib/profiling/sampling/_flamegraph_assets/flamegraph.js
@@ -292,6 +292,8 @@ function createPythonTooltip(data) {
     }
 
     const timeMs = (d.data.value / 1000).toFixed(2);
+    const selfSamples = d.data.self || 0;
+    const selfMs = (selfSamples / 1000).toFixed(2);
     const percentage = ((d.data.value / data.value) * 100).toFixed(2);
     const calls = d.data.calls || 0;
     const childCount = d.children ? d.children.length : 0;
@@ -403,9 +405,14 @@ function createPythonTooltip(data) {
         ${fileLocationHTML}
       </div>
       <div class="tooltip-stats">
-        <span class="tooltip-stat-label">Execution Time:</span>
+        <span class="tooltip-stat-label">Total Time:</span>
         <span class="tooltip-stat-value">${timeMs} ms</span>
 
+        ${selfSamples > 0 ? `
+          <span class="tooltip-stat-label">Self Time:</span>
+          <span class="tooltip-stat-value">${selfMs} ms</span>
+        ` : ''}
+
         <span class="tooltip-stat-label">Percentage:</span>
         <span class="tooltip-stat-value accent">${percentage}%</span>
 
@@ -1271,6 +1278,7 @@ function accumulateInvertedNode(parent, stackFrame, leaf, isDifferential) {
     const newNode = {
       name: stackFrame.name,
       value: 0,
+      self: 0,
       children: {},
       filename: stackFrame.filename,
       lineno: stackFrame.lineno,
@@ -1293,6 +1301,7 @@ function accumulateInvertedNode(parent, stackFrame, leaf, isDifferential) {
 
   const node = parent.children[key];
   node.value += leaf.value;
+  node.self += stackFrame.self || 0;
   if (leaf.threads) {
     leaf.threads.forEach(t => node.threads.add(t));
   }
diff --git a/Lib/profiling/sampling/stack_collector.py b/Lib/profiling/sampling/stack_collector.py
index 31102d3eb0ffa6..461ce95a25874b 100644
--- a/Lib/profiling/sampling/stack_collector.py
+++ b/Lib/profiling/sampling/stack_collector.py
@@ -207,6 +207,7 @@ def convert_children(children, min_samples):
                 child_entry = {
                     "name": name_idx,
                     "value": samples,
+                    "self": node.get("self", 0),
                     "children": [],
                     "filename": filename_idx,
                     "lineno": func[1],
diff --git a/Lib/test/test_profiling/test_sampling_profiler/test_collectors.py b/Lib/test/test_profiling/test_sampling_profiler/test_collectors.py
index 86fb9d4c05b3bc..503430ddf02163 100644
--- a/Lib/test/test_profiling/test_sampling_profiler/test_collectors.py
+++ b/Lib/test/test_profiling/test_sampling_profiler/test_collectors.py
@@ -435,12 +435,14 @@ def test_flamegraph_collector_basic(self):
         strings = data.get("strings", [])
         name = resolve_name(data, strings)
         self.assertTrue(name.startswith("Program Root: "))
-        self.assertIn("func2 (file.py:20)", name)  # formatted name
+        self.assertIn("func2 (file.py:20)", name)
+        self.assertEqual(data["self"], 0)  # non-leaf: no self time
         children = data.get("children", [])
         self.assertEqual(len(children), 1)
         child = children[0]
         self.assertIn("func1 (file.py:10)", resolve_name(child, strings))
         self.assertEqual(child["value"], 1)
+        self.assertEqual(child["self"], 1)  # leaf: all time is self
 
     def test_flamegraph_collector_export(self):
         """Test flamegraph HTML export functionality."""