diff --git a/packages/react-native/src/private/webapis/performance/Performance.js b/packages/react-native/src/private/webapis/performance/Performance.js
index 992f048faab..8c9695384c1 100644
--- a/packages/react-native/src/private/webapis/performance/Performance.js
+++ b/packages/react-native/src/private/webapis/performance/Performance.js
@@ -218,7 +218,7 @@ export default class Performance {
 
     const measure = new PerformanceMeasure(measureName, {
       startTime: computedStartTime,
-      duration: computedDuration,
+      duration: computedDuration ?? 0,
       detail: options?.detail,
     });
 
diff --git a/packages/react-native/src/private/webapis/performance/UserTiming.js b/packages/react-native/src/private/webapis/performance/UserTiming.js
index 9018103e703..55ff802ea16 100644
--- a/packages/react-native/src/private/webapis/performance/UserTiming.js
+++ b/packages/react-native/src/private/webapis/performance/UserTiming.js
@@ -25,8 +25,8 @@ export type TimeStampOrName = DOMHighResTimeStamp | string;
 
 export type PerformanceMeasureInit = {
   detail?: DetailType,
-  startTime?: DOMHighResTimeStamp,
-  duration?: DOMHighResTimeStamp,
+  startTime: DOMHighResTimeStamp,
+  duration: DOMHighResTimeStamp,
 };
 
 export class PerformanceMark extends PerformanceEntry {
@@ -53,12 +53,12 @@ export class PerformanceMark extends PerformanceEntry {
 export class PerformanceMeasure extends PerformanceEntry {
   #detail: DetailType;
 
-  constructor(measureName: string, measureOptions?: PerformanceMeasureInit) {
+  constructor(measureName: string, measureOptions: PerformanceMeasureInit) {
     super({
       name: measureName,
       entryType: 'measure',
-      startTime: measureOptions?.startTime ?? 0,
-      duration: measureOptions?.duration ?? 0,
+      startTime: measureOptions.startTime,
+      duration: measureOptions.duration,
     });
 
     if (measureOptions) {