diff --git a/README.md b/README.md
index 1a06812..2d7391b 100644
--- a/README.md
+++ b/README.md
@@ -99,7 +99,9 @@ export default Example;
 
 | Prop           | Type     | Description                                    | Default |
 | -------------- | -------- | ---------------------------------------------- | ------- |
+| minHour        | number   | Minimum of hour                                | 0       |
 | maxHour        | number   | Maximum of hour                                | 23      |
+| minMinute      | number   | Minimum of minute                              | 0       |
 | maxMinute      | number   | Maximum of minute                              | 59      |
 | hourInterval   | number   | The interval at which hours can be selected.   | 1       |
 | minuteInterval | number   | The interval at which minutes can be selected. | 1       |
diff --git a/index.d.ts b/index.d.ts
index 8b21fef..8e11e23 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -3,7 +3,9 @@ import { StyleProp, ViewStyle } from "react-native";
 
 declare module "react-native-24h-timepicker" {
   export type TimePickerProps = {
+    minHour?: number;
     maxHour?: number;
+    minMinute?: number;
     maxMinute?: number;
     hourInterval?: number;
     minuteInterval?: number;
diff --git a/src/index.js b/src/index.js
index 14e68e6..2d5f05c 100644
--- a/src/index.js
+++ b/src/index.js
@@ -23,33 +23,26 @@ class TimePicker extends Component {
 
   getHourItems = () => {
     const items = [];
-    const { maxHour, hourInterval, hourUnit } = this.props;
-    const interval = maxHour / hourInterval;
-    for (let i = 0; i <= interval; i++) {
-      const value = `${i * hourInterval}`;
+    const { minHour, maxHour, hourInterval, hourUnit } = this.props;
+    for (let i = minHour; i <= maxHour; i=i+hourInterval){
+      const value = `${i}`;
       const item = (
         <Picker.Item key={value} value={value} label={value + hourUnit} />
       );
-      items.push(item);
+      items.push(item); 
     }
     return items;
   };
 
   getMinuteItems = () => {
     const items = [];
-    const { maxMinute, minuteInterval, minuteUnit } = this.props;
-    const interval = maxMinute / minuteInterval;
-    for (let i = 0; i <= interval; i++) {
-      const value = i * minuteInterval;
-      const new_value = value < 10 ? `0${value}` : `${value}`;
+    const { minMinute, maxMinute, minuteInterval, minuteUnit } = this.props;
+    for (let i = minMinute; i <= maxMinute; i=i+minuteInterval){
+      const value = value < 10 ? `0${i}` : `${i}`;
       const item = (
-        <Picker.Item
-          key={value}
-          value={new_value}
-          label={new_value + minuteUnit}
-        />
+        <Picker.Item key={value} value={value} label={value + minuteUnit} />
       );
-      items.push(item);
+      items.push(item); 
     }
     return items;
   };
@@ -140,7 +133,9 @@ class TimePicker extends Component {
 }
 
 TimePicker.propTypes = {
+  minHour: PropTypes.number,
   maxHour: PropTypes.number,
+  minMinute: PropTypes.number,
   maxMinute: PropTypes.number,
   hourInterval: PropTypes.number,
   minuteInterval: PropTypes.number,
@@ -156,7 +151,9 @@ TimePicker.propTypes = {
 };
 
 TimePicker.defaultProps = {
+  minHour: 0,
   maxHour: 23,
+  minMinute: 0,
   maxMinute: 59,
   hourInterval: 1,
   minuteInterval: 1,