diff --git a/packages/vuetify/src/components/VDatePicker/VDatePickerMonth.tsx b/packages/vuetify/src/components/VDatePicker/VDatePickerMonth.tsx
index 41d0e29fa81..03c31f44a2c 100644
--- a/packages/vuetify/src/components/VDatePicker/VDatePickerMonth.tsx
+++ b/packages/vuetify/src/components/VDatePicker/VDatePickerMonth.tsx
@@ -79,7 +79,7 @@ export const VDatePickerMonth = genericComponent<VDatePickerMonthSlots>()({
           rangeStop.value = _value
         }
 
-        const diff = adapter.getDiff(rangeStop.value, rangeStart.value)
+        const diff = adapter.getDiff(rangeStop.value, rangeStart.value, 'days')
         const datesInRange = [rangeStart.value]
 
         for (let i = 1; i < diff; i++) {
diff --git a/packages/vuetify/src/composables/date/adapters/vuetify.ts b/packages/vuetify/src/composables/date/adapters/vuetify.ts
index 6c02f13defa..8dd97f14a99 100644
--- a/packages/vuetify/src/composables/date/adapters/vuetify.ts
+++ b/packages/vuetify/src/composables/date/adapters/vuetify.ts
@@ -431,11 +431,27 @@ function getDiff (date: Date, comparing: Date | string, unit?: string) {
   const d = new Date(date)
   const c = new Date(comparing)
 
-  if (unit === 'month') {
-    return d.getMonth() - c.getMonth() + (d.getFullYear() - c.getFullYear()) * 12
+  switch (unit) {
+    case 'years':
+      return d.getFullYear() - c.getFullYear()
+    case 'quarters':
+      return Math.floor((d.getMonth() - c.getMonth() + (d.getFullYear() - c.getFullYear()) * 12) / 4)
+    case 'months':
+      return d.getMonth() - c.getMonth() + (d.getFullYear() - c.getFullYear()) * 12
+    case 'weeks':
+      return Math.floor((d.getTime() - c.getTime()) / (1000 * 60 * 60 * 24 * 7))
+    case 'days':
+      return Math.floor((d.getTime() - c.getTime()) / (1000 * 60 * 60 * 24))
+    case 'hours':
+      return Math.floor((d.getTime() - c.getTime()) / (1000 * 60 * 60))
+    case 'minutes':
+      return Math.floor((d.getTime() - c.getTime()) / (1000 * 60))
+    case 'seconds':
+      return Math.floor((d.getTime() - c.getTime()) / 1000)
+    default: {
+      return d.getTime() - c.getTime()
+    }
   }
-
-  return Math.floor((d.getTime() - c.getTime()) / (1000 * 60 * 60 * 24))
 }
 
 function setHours (date: Date, count: number) {