diff --git a/features/smil-svg-animations.yml b/features/smil-svg-animations.yml
index 3c00c3cde79..6bd5072178b 100644
--- a/features/smil-svg-animations.yml
+++ b/features/smil-svg-animations.yml
@@ -72,6 +72,10 @@ compat_features:
   - api.SVGSVGElement.animationsPaused
   - api.SVGSVGElement.pauseAnimations
   - api.SVGSVGElement.unpauseAnimations
+  - api.TimeEvent
+  - api.TimeEvent.detail
+  - api.TimeEvent.initTimeEvent
+  - api.TimeEvent.view
   - svg.elements.animate
   - svg.elements.animate.attributeName
   - svg.elements.animate.attributeType
diff --git a/features/smil-svg-animations.yml.dist b/features/smil-svg-animations.yml.dist
index 4b950fa3157..26c1e05ea7f 100644
--- a/features/smil-svg-animations.yml.dist
+++ b/features/smil-svg-animations.yml.dist
@@ -325,6 +325,15 @@ compat_features:
   - api.SVGAnimationElement.endEvent_event
   - api.SVGAnimationElement.repeatEvent_event
 
+  # baseline: false
+  # support:
+  #   firefox: "4"
+  #   firefox_android: "4"
+  - api.TimeEvent
+  - api.TimeEvent.detail
+  - api.TimeEvent.initTimeEvent
+  - api.TimeEvent.view
+
   # baseline: false
   # support:
   #   safari_ios: "1"