diff --git a/packages/datetime-picker/README.md b/packages/datetime-picker/README.md
index 644442ef..b1f4089e 100644
--- a/packages/datetime-picker/README.md
+++ b/packages/datetime-picker/README.md
@@ -131,8 +131,8 @@ Page({
 Page({
   data: {
     currentDate: '12:00',
-    minHour: 9,
-    maxHour: 23
+    minHour: 10,
+    maxHour: 20
   },
 
   onInput(event) {
diff --git a/packages/datetime-picker/index.ts b/packages/datetime-picker/index.ts
index cc10c20d..3bcbb56e 100644
--- a/packages/datetime-picker/index.ts
+++ b/packages/datetime-picker/index.ts
@@ -295,7 +295,7 @@ VantComponent({
 
       if (data.type === 'time') {
         const indexes = picker.getIndexes();
-        value = `${indexes[0] + data.minHour}:${indexes[1] + data.minMinute}`;
+        value = `${+data.columns[0].values[indexes[0]]}:${+data.columns[1].values[indexes[1]]}`;
       } else {
         const values = picker.getValues();
         const year = getTrueValue(values[0]);