diff --git a/src/components/subtitlesync/subtitlesync.js b/src/components/subtitlesync/subtitlesync.js
index 57ae63cb8c2e..3df3c6f56981 100644
--- a/src/components/subtitlesync/subtitlesync.js
+++ b/src/components/subtitlesync/subtitlesync.js
@@ -151,6 +151,21 @@ class SubtitleSync {
             subtitleSyncContainer.classList.add('hide');
         }
     }
+
+    update(offset) {
+        SubtitleSync.prototype.toggle();
+
+        const value = parseFloat(subtitleSyncSlider.value)+offset;
+        subtitleSyncSlider.updateOffset(value);
+    }
+
+    incrementOffset() {
+        SubtitleSync.prototype.update(+subtitleSyncSlider.step)
+    }
+
+    decrementOffset() {
+        SubtitleSync.prototype.update(-subtitleSyncSlider.step)
+    }
 }
 
 export default SubtitleSync;
diff --git a/src/controllers/playback/video/index.js b/src/controllers/playback/video/index.js
index fbe4c3cecb70..8d105dfae336 100644
--- a/src/controllers/playback/video/index.js
+++ b/src/controllers/playback/video/index.js
@@ -1340,6 +1340,12 @@ export default function (view) {
             case 'PageDown':
                 playbackManager.previousChapter(currentPlayer);
                 break;
+            case 'g':
+                SubtitleSync.prototype.decrementOffset()
+                break;
+            case 'h':
+                SubtitleSync.prototype.incrementOffset()
+                break;
         }
     }