diff --git a/frontend/src/app/services/highcharts.service.ts b/frontend/src/app/services/highcharts.service.ts
index b3e63c6..4b53625 100644
--- a/frontend/src/app/services/highcharts.service.ts
+++ b/frontend/src/app/services/highcharts.service.ts
@@ -761,12 +761,10 @@ export class HighchartsService {
         type: 'scatter',
       },
       xAxis: {
+        type: 'datetime',
         title: {
           text: 'Activity'
         },
-        labels: {
-          format: '{value} m'
-        },
         startOnTick: true,
         endOnTick: true,
         showLastLabel: true
@@ -776,7 +774,7 @@ export class HighchartsService {
           text: 'Time Saved'
         },
         labels: {
-          format: '{value} kg'
+          format: '{value} min'
         }
       },
       series: [{