diff --git a/platypush/backend/http/webapp/src/utils/DateTime.vue b/platypush/backend/http/webapp/src/utils/DateTime.vue
index 05b7393076..e76a965c06 100644
--- a/platypush/backend/http/webapp/src/utils/DateTime.vue
+++ b/platypush/backend/http/webapp/src/utils/DateTime.vue
@@ -3,6 +3,8 @@ export default {
   name: "DateTime",
   methods: {
     formatDate(date, year=false) {
+      if (date == null)
+        return null
       if (typeof date === 'number')
         date = new Date(date * 1000)
       else if (typeof date === 'string')
@@ -12,6 +14,8 @@ export default {
     },
 
     formatTime(date, seconds=true) {
+      if (date == null)
+        return null
       if (typeof date === 'number')
         date = new Date(date * 1000)
       if (typeof date === 'string')
@@ -21,6 +25,9 @@ export default {
     },
 
     formatDateTime(date, year=false, seconds=true, skipTimeIfMidnight=false) {
+      if (date == null)
+        return null
+
       const now = new Date()
 
       if (typeof date === 'number')
@@ -37,6 +44,9 @@ export default {
     },
 
     formatDuration(duration, seconds=true) {
+      if (duration == null)
+        return null
+
       if (duration == null)
         return ''