diff --git a/src/scale/Time.ts b/src/scale/Time.ts
index 07f589867e..a3a7de479c 100644
--- a/src/scale/Time.ts
+++ b/src/scale/Time.ts
@@ -206,8 +206,10 @@ class TimeScale extends IntervalScale<TimeScaleSetting> {
         let upperUnitIndex = primaryTimeUnits.length - 1;
         let maxLevel = 0;
         each(ticks, tick => {
-            upperUnitIndex = Math.min(upperUnitIndex, indexOf(primaryTimeUnits, tick.time.upperTimeUnit));
-            maxLevel = Math.max(maxLevel, tick.time.level);
+            if (tick.time) {
+                upperUnitIndex = Math.min(upperUnitIndex, indexOf(primaryTimeUnits, tick.time.upperTimeUnit));
+                maxLevel = Math.max(maxLevel, tick.time.level);
+            }
         });
 
         if (scaleBreakHelper) {
diff --git a/src/util/time.ts b/src/util/time.ts
index 5157c63f41..6c6ed6bfe8 100644
--- a/src/util/time.ts
+++ b/src/util/time.ts
@@ -343,7 +343,7 @@ export function leveledFormat(
     else if (zrUtil.isFunction(formatter)) {
         const extra: TimeAxisLabelFormatterExtraParams = {
             time: tick.time,
-            level: tick.time.level,
+            level: tick.time ? tick.time.level : 0,
         };
         const scaleBreakHelper = getScaleBreakHelper();
         if (scaleBreakHelper) {
diff --git a/test/axis-customTicks.html b/test/axis-customTicks.html
index 7f79f099d8..9aa8ec04e3 100644
--- a/test/axis-customTicks.html
+++ b/test/axis-customTicks.html
@@ -40,6 +40,7 @@
         <div id="main3"></div>
         <div id="main4"></div>
         <div id="main5"></div>
+        <div id="main6"></div>
 
         <script>
         require(['echarts'], function (echarts) {
@@ -383,6 +384,60 @@
         });
         </script>
 
+        <script>
+        require(['echarts'], function (echarts) {
+            var weeklyData = [
+                ['2025-05-26', 116],
+                ['2025-06-02', 129],
+                ['2025-06-09', 135],
+                ['2025-06-16', 86],
+                ['2025-06-23', 73],
+                ['2025-06-30', 85],
+                ['2025-07-07', 73],
+                ['2025-07-14', 68],
+                ['2025-07-21', 92],
+                ['2025-07-28', 84],
+                ['2025-08-04', 79],
+                ['2025-08-11', 88],
+                ['2025-08-18', 91],
+                ['2025-08-25', 95]
+            ];
+
+            var timestamps = weeklyData.map(function(d) { return new Date(d[0]).getTime(); });
+
+            var option = {
+                xAxis: {
+                    type: 'time',
+                    axisLabel: {
+                        customValues: timestamps,
+                        formatter: function(value) {
+                            var date = new Date(value);
+                            var month = date.getMonth() + 1;
+                            var day = date.getDate();
+                            return (day < 10 ? '0' + day : day) + '.' + (month < 10 ? '0' + month : month);
+                        }
+                    }
+                },
+                yAxis: {
+                    type: 'value'
+                },
+                series: [{
+                    type: 'bar',
+                    data: weeklyData
+                }]
+            };
+
+            var chart = testHelper.create(echarts, 'main6', {
+                title: [
+                    'Time axis customValues with formatter',
+                    'Should not throw TypeError about tick.time.level',
+                    'Labels formatted as DD.MM'
+                ],
+                option: option
+            });
+        });
+        </script>
+
 
     </body>
 </html>