diff --git a/ui-ngx/src/app/modules/home/components/widget/config/basic/chart/time-series-chart-basic-config.component.html b/ui-ngx/src/app/modules/home/components/widget/config/basic/chart/time-series-chart-basic-config.component.html
index 3d0fe04e4c..51ef353a10 100644
--- a/ui-ngx/src/app/modules/home/components/widget/config/basic/chart/time-series-chart-basic-config.component.html
+++ b/ui-ngx/src/app/modules/home/components/widget/config/basic/chart/time-series-chart-basic-config.component.html
@@ -27,7 +27,9 @@
   </tb-datasources>
   <div class="tb-form-panel">
     <div fxLayout="row" fxLayoutAlign="space-between center">
-      <div class="tb-form-panel-title">{{ 'widgets.chart.series' | translate }}</div>
+      <div class="tb-form-panel-title" tb-hint-tooltip-icon="{{ seriesMode === 'comparison' ? ('widgets.time-series-chart.comparison.comparison-hint' | translate) : null }}">
+        {{ 'widgets.chart.series' | translate }}
+      </div>
       <tb-toggle-select [ngModel]="seriesMode" (ngModelChange)="seriesModeChange($event)"
                         [ngModelOptions]="{ standalone: true }">
         <tb-toggle-option value="series">{{ 'widgets.chart.series' | translate }}</tb-toggle-option>
diff --git a/ui-ngx/src/assets/locale/locale.constant-en_US.json b/ui-ngx/src/assets/locale/locale.constant-en_US.json
index 885aaeaefe..509fc6cbbb 100644
--- a/ui-ngx/src/assets/locale/locale.constant-en_US.json
+++ b/ui-ngx/src/assets/locale/locale.constant-en_US.json
@@ -7062,6 +7062,7 @@
             "bar-width-absolute": "Absolute (ms)",
             "comparison": {
               "comparison": "Comparison",
+              "comparison-hint": "Comparison works only with historical data!",
               "show": "Show",
               "settings": "Comparison settings",
               "show-values-for-comparison": "Show historical data for comparison",