diff --git a/src/app/layouts/tasks-executor/tasks-executor.ts b/src/app/layouts/tasks-executor/tasks-executor.ts
index 2b60b39..5b14f93 100644
--- a/src/app/layouts/tasks-executor/tasks-executor.ts
+++ b/src/app/layouts/tasks-executor/tasks-executor.ts
@@ -79,12 +79,28 @@ export class TasksExecutor {
   }
 
   private formatDuration(startTime: number | null, endTime: number | null): string {
-    if (!startTime || !endTime) return '00:00:00';
+    if (!startTime || !endTime) return '0 sec';
     const diffMs = Math.max(0, endTime - startTime);
     const totalSeconds = Math.floor(diffMs / 1000);
-    const hh = String(Math.floor(totalSeconds / 3600)).padStart(2, '0');
-    const mm = String(Math.floor((totalSeconds % 3600) / 60)).padStart(2, '0');
-    const ss = String(totalSeconds % 60).padStart(2, '0');
-    return `${hh}:${mm}:${ss}`;
+    const totalMinutes = Math.floor(totalSeconds / 60);
+    const totalHours = Math.floor(totalMinutes / 60);
+    const totalDays = Math.floor(totalHours / 24);
+
+    if (totalSeconds < 60) {
+      return `${totalSeconds} sec`;
+    }
+
+    if (totalMinutes < 60) {
+      const seconds = totalSeconds % 60;
+      return seconds > 0 ? `${totalMinutes} min ${seconds} sec` : `${totalMinutes} min`;
+    }
+
+    if (totalHours < 24) {
+      const minutes = totalMinutes % 60;
+      return minutes > 0 ? `${totalHours} h ${minutes} min` : `${totalHours} h`;
+    }
+
+    const hours = totalHours % 24;
+    return hours > 0 ? `${totalDays} gg ${hours} h` : `${totalDays} gg`;
   }
 }
diff --git a/src/app/shared/task-execution-viewer/task-execution-viewer.html b/src/app/shared/task-execution-viewer/task-execution-viewer.html
index fd77e84..f8e421a 100644
--- a/src/app/shared/task-execution-viewer/task-execution-viewer.html
+++ b/src/app/shared/task-execution-viewer/task-execution-viewer.html
@@ -33,7 +33,7 @@
       </div>
       <div class="bg-slate-50 border border-slate-200 rounded-md p-2">
         <div class="text-xs text-slate-500">Duration</div>
-        <div class="text-sm font-medium text-slate-800">{{ durationMs() != null ? durationMs() + ' ms' : '-' }}</div>
+        <div class="text-sm font-medium text-slate-800">{{ formattedDuration() }}</div>
       </div>
       <div class="bg-slate-50 border border-slate-200 rounded-md p-2">
         <div class="text-xs text-slate-500">Steps</div>
diff --git a/src/app/shared/task-execution-viewer/task-execution-viewer.ts b/src/app/shared/task-execution-viewer/task-execution-viewer.ts
index 855a388..b655092 100644
--- a/src/app/shared/task-execution-viewer/task-execution-viewer.ts
+++ b/src/app/shared/task-execution-viewer/task-execution-viewer.ts
@@ -65,10 +65,10 @@ export class TaskExecutionViewerComponent implements OnDestroy {
     return { blocks, connections };
   });
 
-  readonly durationMs = computed(() => {
+  readonly formattedDuration = computed(() => {
     const context = this.execution()?.context;
-    if (!context?.startTime || !context?.endTime) return null;
-    return Math.max(0, context.endTime - context.startTime);
+    if (!context?.startTime || !context?.endTime) return '-';
+    return this.formatDuration(context.startTime, context.endTime);
   });
 
   readonly inputsReadOnly = computed(() => {
@@ -239,6 +239,31 @@ export class TaskExecutionViewerComponent implements OnDestroy {
     this.textInputDebounceTimers.delete(timerKey);
   }
 
+  private formatDuration(startTime: number, endTime: number): string {
+    const diffMs = Math.max(0, endTime - startTime);
+    const totalSeconds = Math.floor(diffMs / 1000);
+    const totalMinutes = Math.floor(totalSeconds / 60);
+    const totalHours = Math.floor(totalMinutes / 60);
+    const totalDays = Math.floor(totalHours / 24);
+
+    if (totalSeconds < 60) {
+      return `${totalSeconds} sec`;
+    }
+
+    if (totalMinutes < 60) {
+      const seconds = totalSeconds % 60;
+      return seconds > 0 ? `${totalMinutes} min ${seconds} sec` : `${totalMinutes} min`;
+    }
+
+    if (totalHours < 24) {
+      const minutes = totalMinutes % 60;
+      return minutes > 0 ? `${totalHours} h ${minutes} min` : `${totalHours} h`;
+    }
+
+    const hours = totalHours % 24;
+    return hours > 0 ? `${totalDays} gg ${hours} h` : `${totalDays} gg`;
+  }
+
   private inferConnections(steps: TaskExecutionStep[]) {
     const connections: FlowData['connections'] = [];