diff --git a/TaskTracker.Api/wwwroot/js/app.js b/TaskTracker.Api/wwwroot/js/app.js
index a2bebe4..98aba2c 100644
--- a/TaskTracker.Api/wwwroot/js/app.js
+++ b/TaskTracker.Api/wwwroot/js/app.js
@@ -90,7 +90,7 @@
             var deltaMilliseconds = dueAt - now;
             var deltaSeconds = Math.floor(deltaMilliseconds / 1000);
             var overdue = deltaSeconds < 0;
-            var totalSeconds = Math.floor(Math.abs(deltaMilliseconds) / 1000);
+            var totalSeconds = Math.abs(deltaSeconds);
             countdown.textContent = formatCountdown(totalSeconds, !overdue);
             countdown.classList.toggle('task-countdown--overdue', overdue);
         });