diff --git a/src/main.js b/src/main.js
index 8c72580..8fcb808 100644
--- a/src/main.js
+++ b/src/main.js
@@ -71,7 +71,7 @@
     if (isUtcDisplay) {
       let timeOptions = {
         timeZone: 'UTC',
-        hour12: false,
+        hourCycle: 'h23',
       };
       return `${value.toLocaleTimeString('default', timeOptions)} UTC`;
     }