diff --git a/application/Espo/Core/Templates/Metadata/Event/selectDefs.json b/application/Espo/Core/Templates/Metadata/Event/selectDefs.json
index cf3c360745..beaed36368 100644
--- a/application/Espo/Core/Templates/Metadata/Event/selectDefs.json
+++ b/application/Espo/Core/Templates/Metadata/Event/selectDefs.json
@@ -3,6 +3,9 @@
         "duration": [
             "dateStart",
             "dateEnd"
+        ],
+        "dateStart": [
+            "dateEnd"
         ]
     }
-}
\ No newline at end of file
+}
diff --git a/application/Espo/Modules/Crm/Resources/metadata/selectDefs/Call.json b/application/Espo/Modules/Crm/Resources/metadata/selectDefs/Call.json
index 7dbfeebd8c..90376583a1 100644
--- a/application/Espo/Modules/Crm/Resources/metadata/selectDefs/Call.json
+++ b/application/Espo/Modules/Crm/Resources/metadata/selectDefs/Call.json
@@ -3,6 +3,9 @@
         "duration": [
             "dateStart",
             "dateEnd"
+        ],
+        "dateStart": [
+            "dateEnd"
         ]
     },
     "primaryFilterClassNameMap": {
diff --git a/application/Espo/Modules/Crm/Resources/metadata/selectDefs/Meeting.json b/application/Espo/Modules/Crm/Resources/metadata/selectDefs/Meeting.json
index 0f6e4e78a3..3f9c0a55d6 100644
--- a/application/Espo/Modules/Crm/Resources/metadata/selectDefs/Meeting.json
+++ b/application/Espo/Modules/Crm/Resources/metadata/selectDefs/Meeting.json
@@ -4,6 +4,13 @@
         "duration": [
             "dateStart",
             "dateEnd"
+        ],
+        "dateStart": [
+            "dateEnd"
+        ],
+        "dateStartDate": [
+            "dateEnd",
+            "dateEndDate"
         ]
     },
     "primaryFilterClassNameMap": {