diff --git a/apps/music/elements/music-seek-bar.js b/apps/music/elements/music-seek-bar.js
index 867dc40b964d..5562162ce2e5 100644
--- a/apps/music/elements/music-seek-bar.js
+++ b/apps/music/elements/music-seek-bar.js
@@ -240,7 +240,7 @@ Object.defineProperty(proto, 'remainingTime', {
 
       IntlHelper.get('duration').then((duration) => {
         this.els.remainingTime.textContent =
-          duration.format(-this._remainingTime * 1000);
+          duration.format(-(Math.floor(this.duration) - this._remainingTime) * 1000);
         this.els.elapsedTime.textContent =
           duration.format(this._elapsedTime * 1000);
       });
diff --git a/dev_apps/music-oga/js/ui/views/player_view.js b/dev_apps/music-oga/js/ui/views/player_view.js
index 2c9e0eef83d9..5d2197f737da 100755
--- a/dev_apps/music-oga/js/ui/views/player_view.js
+++ b/dev_apps/music-oga/js/ui/views/player_view.js
@@ -560,7 +560,7 @@ var PlayerView = {
     this.seekBar.max = isFinite(endTime) ? endTime : 0;
     this.seekBar.value = currentTime;
 
-    var formattedCurrentTime = formatTime(currentTime);
+    var formattedCurrentTime = formatTime(Math.floor(currentTime));
     // Adjust values for accessibility
     this.seekSlider.setAttribute('aria-valuetext', formattedCurrentTime);
     this.seekSlider.setAttribute('aria-valuemax', this.seekBar.max);
@@ -587,7 +587,7 @@ var PlayerView = {
     this.seekIndicator.style.transform = 'translateX(' + x + ')';
 
     this.seekElapsed.textContent = formattedCurrentTime;
-    var remainingTime = endTime - currentTime;
+    var remainingTime = Math.floor(endTime - currentTime);
     // Check if there is remaining time to show, avoiding to display "-00:00"
     // while song is loading (Bug 833710)
     this.seekRemaining.textContent =