diff --git a/frontend/less/espo/misc/fullcalendar/fullcalendar.less b/frontend/less/espo/misc/fullcalendar/fullcalendar.less
index 742be9f471..fab494e4c6 100644
--- a/frontend/less/espo/misc/fullcalendar/fullcalendar.less
+++ b/frontend/less/espo/misc/fullcalendar/fullcalendar.less
@@ -33,6 +33,10 @@
         font-weight: normal;
     }
 
+    .fc-daygrid-block-event .fc-event-time {
+        font-weight: 400;
+    }
+
     .fc-event-main > .user > .avatar {
         position: relative;
         top: -1px;