diff --git a/src/lib/intl.d.ts b/src/lib/intl.d.ts
index 1265dc51486..b5291306b87 100644
--- a/src/lib/intl.d.ts
+++ b/src/lib/intl.d.ts
@@ -170,17 +170,32 @@ interface Date {
       */
     toLocaleDateString(locales?: string[], options?: Intl.DateTimeFormatOptions): string;
 
+    /**
+      * Converts a time to a string by using the current or specified locale.  
+      * @param locale Locale tag. If you omit this parameter, the default locale of the JavaScript runtime is used.
+      * @param options An object that contains one or more properties that specify comparison options.
+      */
+    toLocaleTimeString(locale?: string[], options?: Intl.DateTimeFormatOptions): string;
+    
     /**
       * Converts a date and time to a string by using the current or specified locale.  
       * @param locale Locale tag. If you omit this parameter, the default locale of the JavaScript runtime is used.
       * @param options An object that contains one or more properties that specify comparison options.
       */
     toLocaleString(locale?: string, options?: Intl.DateTimeFormatOptions): string;
+    
     /**
       * Converts a date to a string by using the current or specified locale.  
       * @param locale Locale tag. If you omit this parameter, the default locale of the JavaScript runtime is used.
       * @param options An object that contains one or more properties that specify comparison options.
       */
     toLocaleDateString(locale?: string, options?: Intl.DateTimeFormatOptions): string;
+
+    /**
+      * Converts a time to a string by using the current or specified locale.  
+      * @param locale Locale tag. If you omit this parameter, the default locale of the JavaScript runtime is used.
+      * @param options An object that contains one or more properties that specify comparison options.
+      */
+    toLocaleTimeString(locale?: string, options?: Intl.DateTimeFormatOptions): string;
 }