Make end time label translatable

po/POTFILES

@@ -6,4 +6,5 @@ ui/preferences-window.ui
 
 src/buttons.js
 src/dialogs.js
+src/revealers.js
 src/widget.js

src/revealers.js

@@ -167,7 +167,7 @@ class ClapperRevealerTop extends CustomRevealer
             ? endTime.format(this.timeFormat)
             : 'unknown';
 
-        this.endTime.label = `Ends at: ${end}`;
+        this.endTime.label = _('Ends at: %s').format(end);
 
         /* Make sure that next timeout is always run after clock changes,
          * by delaying it for additional few milliseconds */