diff --git a/CHANGELOG.md b/CHANGELOG.md
index 85565c83..cbd6a70e 100755
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -33,6 +33,7 @@ Added UK Met Office Datapoint feed as a provider in the default weather module.
 - Only update clock once per minute when seconds aren't shown
 
 ### Fixed
+- fixed issue [#1696](https://github.com/MichMich/MagicMirror/issues/1696), some ical files start date to not parse to date type 
 - Allowance HTML5 autoplay-policy (policy is changed from Chrome 66 updates)
 - Handle SIGTERM messages
 - Fixes sliceMultiDayEvents so it respects maximumNumberOfDays
diff --git a/modules/default/calendar/vendor/ical.js/node-ical.js b/modules/default/calendar/vendor/ical.js/node-ical.js
index e42ce895..1d295f8c 100644
--- a/modules/default/calendar/vendor/ical.js/node-ical.js
+++ b/modules/default/calendar/vendor/ical.js/node-ical.js
@@ -37,12 +37,16 @@ ical.objectHandlers['END'] = function(val, params, curr, stack){
         }
       }
 
-      rule += ' DTSTART:' + curr.start.toISOString().replace(/[-:]/g, '');
-      rule = rule.replace(/\.[0-9]{3}/, '');
+      if( typeof (curr.start) === "date") {
+          rule += ' DTSTART:' + curr.start.toISOString().replace(/[-:]/g, '');
+          rule = rule.replace(/\.[0-9]{3}/, '');
+      }
     }
     for (var i in curr.exdates) {
-      rule += ' EXDATE:' + curr.exdates[i].toISOString().replace(/[-:]/g, '');
-      rule = rule.replace(/\.[0-9]{3}/, '');
+        if( typeof (curr.exdates[i]) === "date") {
+            rule += ' EXDATE:' + curr.exdates[i].toISOString().replace(/[-:]/g, '');
+            rule = rule.replace(/\.[0-9]{3}/, '');
+        }
     }
     try {
       curr.rrule = rrulestr(rule);