diff --git a/ios-native/SemosanWidget/SemosanLiveActivity.swift b/ios-native/SemosanWidget/SemosanLiveActivity.swift
index 051a194..e5a7581 100644
--- a/ios-native/SemosanWidget/SemosanLiveActivity.swift
+++ b/ios-native/SemosanWidget/SemosanLiveActivity.swift
@@ -33,17 +33,25 @@ private struct LiveTimerText: View {
     var body: some View {
         Group {
             if state.isRunning, let epoch = state.timerStartEpoch {
-                Text(Date(timeIntervalSince1970: epoch / 1000), style: .timer)
-                    .monospacedDigit()
+                let startDate = Date(timeIntervalSince1970: epoch / 1000)
+                TimelineView(.periodic(from: .now, by: 1.0)) { tl in
+                    let elapsed = max(0, Int(tl.date.timeIntervalSince(startDate)))
+                    Text(formatExpanded(elapsed))
+                        .font(.custom("Lexend-SemiBold", size: fontSize))
+                        .kerning(kerning)
+                        .foregroundColor(C.timerGreen)
+                        .minimumScaleFactor(0.6)
+                        .lineLimit(1)
+                }
             } else {
                 Text(formatExpanded(state.elapsedSeconds))
+                    .font(.custom("Lexend-SemiBold", size: fontSize))
+                    .kerning(kerning)
+                    .foregroundColor(C.timerGreen)
+                    .minimumScaleFactor(0.6)
+                    .lineLimit(1)
             }
         }
-        .font(.custom("Lexend-SemiBold", size: fontSize))
-        .kerning(kerning)
-        .foregroundColor(C.timerGreen)
-        .minimumScaleFactor(0.6)
-        .lineLimit(1)
     }
 }
 
diff --git a/ios/SemosanWidget/SemosanLiveActivity.swift b/ios/SemosanWidget/SemosanLiveActivity.swift
index d497c83..e5a7581 100644
--- a/ios/SemosanWidget/SemosanLiveActivity.swift
+++ b/ios/SemosanWidget/SemosanLiveActivity.swift
@@ -33,19 +33,25 @@ private struct LiveTimerText: View {
     var body: some View {
         Group {
             if state.isRunning, let epoch = state.timerStartEpoch {
-                // 실행 중: 시스템 클록 기반 네이티브 타이머 (JS 업데이트 불필요)
-                Text(Date(timeIntervalSince1970: epoch / 1000), style: .timer)
-                    .monospacedDigit()
+                let startDate = Date(timeIntervalSince1970: epoch / 1000)
+                TimelineView(.periodic(from: .now, by: 1.0)) { tl in
+                    let elapsed = max(0, Int(tl.date.timeIntervalSince(startDate)))
+                    Text(formatExpanded(elapsed))
+                        .font(.custom("Lexend-SemiBold", size: fontSize))
+                        .kerning(kerning)
+                        .foregroundColor(C.timerGreen)
+                        .minimumScaleFactor(0.6)
+                        .lineLimit(1)
+                }
             } else {
-                // 일시정지: JS에서 받은 정적 값 표시
                 Text(formatExpanded(state.elapsedSeconds))
+                    .font(.custom("Lexend-SemiBold", size: fontSize))
+                    .kerning(kerning)
+                    .foregroundColor(C.timerGreen)
+                    .minimumScaleFactor(0.6)
+                    .lineLimit(1)
             }
         }
-        .font(.custom("Lexend-SemiBold", size: fontSize))
-        .kerning(kerning)
-        .foregroundColor(C.timerGreen)
-        .minimumScaleFactor(0.6)
-        .lineLimit(1)
     }
 }