diff --git a/src/AttributeUi/AttributeUi.css b/src/AttributeUi/AttributeUi.css
index 13e1d9a..d361ebe 100644
--- a/src/AttributeUi/AttributeUi.css
+++ b/src/AttributeUi/AttributeUi.css
@@ -267,6 +267,7 @@ main.layout:has( .workarea > .pivotTableUiContainer[aria-busy=true] ) > nav#side
     /* calendar */
     content: "\ea53";
   }
+  details[data-nodetype=derived][data-derivation=iso-year] > summary > span.label::before,
   details[data-nodetype=derived][data-derivation=year] > summary > span.label::before {
     /* letter-y */
     content: "\ec68";
@@ -301,6 +302,7 @@ main.layout:has( .workarea > .pivotTableUiContainer[aria-busy=true] ) > nav#side
 
   details[data-nodetype=derived][data-derivation="day of week shortname"] > summary > span.label::before,
   details[data-nodetype=derived][data-derivation="day of week name"] > summary > span.label::before,
+  details[data-nodetype=derived][data-derivation="iso-day of week"] > summary > span.label::before,
   details[data-nodetype=derived][data-derivation="day of week num"] > summary > span.label::before {
     /* letter-d-small */
     content: "\fcca";
diff --git a/src/AttributeUi/AttributeUi.js b/src/AttributeUi/AttributeUi.js
index c44da9b..db74918 100644
--- a/src/AttributeUi/AttributeUi.js
+++ b/src/AttributeUi/AttributeUi.js
@@ -232,6 +232,14 @@ class AttributeUi {
         return fallbackFormatter;
       }
     },
+    'iso-year': {
+      folder: 'date fields',
+      expressionTemplate: "CAST( ISOYEAR( ${columnExpression} ) AS INT)",
+      columnType: 'INTEGER',
+      createFormatter: function(){
+        return fallbackFormatter;
+      }
+    },
     'quarter': {
       folder: 'date fields',
       expressionTemplate: "'Q' || QUARTER( ${columnExpression} )",
@@ -287,6 +295,11 @@ class AttributeUi {
       expressionTemplate: "CAST( DAYOFWEEK( ${columnExpression} ) as UTINYINT)",
       columnType: 'UTINYINT',
     },
+    'iso-day of week': {
+      folder: 'date fields',
+      expressionTemplate: "CAST( ISODOW( ${columnExpression} ) as UTINYINT)",
+      columnType: 'UTINYINT',
+    },
     'day of week name': {
       folder: 'date fields',
       expressionTemplate: "CAST( DAYOFWEEK( ${columnExpression} ) as UTINYINT)",
diff --git a/src/QueryUi/QueryUi.css b/src/QueryUi/QueryUi.css
index 3f1b842..d153481 100644
--- a/src/QueryUi/QueryUi.css
+++ b/src/QueryUi/QueryUi.css
@@ -206,6 +206,7 @@ body > main:has( > menu[role=toolbar] > #currentDatasource:empty ) > #workarea >
         content: "\ea53";
       }
 
+      > li[data-derivation=iso-year] > span:before,
       > li[data-derivation=year] > span:before {
         /* letter-y */
         content: "\ec68";
@@ -239,6 +240,7 @@ body > main:has( > menu[role=toolbar] > #currentDatasource:empty ) > #workarea >
 
       > li[data-derivation="day of week shortname"] > span:before,
       > li[data-derivation="day of week name"] > span:before,
+      > li[data-derivation="iso-day of week"] > span:before,
       > li[data-derivation="day of week num"] > span:before {
         /* letter-d-small */
         content: "\fcca";