fix: should generate showHour from format `k`

components/date-picker/demo/time.md

@@ -37,8 +37,8 @@ ReactDOM.render(
     />
     <br />
     <RangePicker
-      showTime
-      format="YYYY-MM-DD HH:mm:ss"
+      showTime={{ format: 'HH:mm' }}
+      format="YYYY-MM-DD HH:mm"
       placeholder={['Start Time', 'End Time']}
       onChange={onChange}
       onOk={onOk}

components/date-picker/wrapPicker.tsx

@@ -2,6 +2,7 @@ import React from 'react';
 import PropTypes from 'prop-types';
 import TimePickerPanel from 'rc-time-picker/lib/Panel';
 import classNames from 'classnames';
+import { generateShowHourMinuteSecond } from '../time-picker';
 import warning from '../_util/warning';
 import { getComponentLocale } from '../_util/getLocale';
 declare const require: Function;
@@ -78,10 +79,8 @@ export default function wrapPicker(Picker, defaultFormat?: string): any {
 
       const timeFormat = (props.showTime && props.showTime.format) || 'HH:mm:ss';
       const rcTimePickerProps = {
+        ...generateShowHourMinuteSecond(timeFormat),
         format: timeFormat,
-        showSecond: timeFormat.indexOf('ss') >= 0,
-        showMinute: timeFormat.indexOf('mm') >= 0,
-        showHour: timeFormat.indexOf('HH') >= 0,
         use12Hours: (props.showTime && props.showTime.use12Hours),
       };
       const columns = getColumns(rcTimePickerProps);

components/time-picker/index.tsx

@@ -6,6 +6,19 @@ import assign from 'object-assign';
 import injectLocale from '../locale-provider/injectLocale';
 import defaultLocale from './locale/zh_CN';
 
+export function generateShowHourMinuteSecond(format: string) {
+  // Ref: http://momentjs.com/docs/#/parsing/string-format/
+  return {
+    showHour: (
+      format.indexOf('H') > -1 ||
+        format.indexOf('h') > -1 ||
+        format.indexOf('k') > -1
+    ),
+    showMinute: format.indexOf('m') > -1,
+    showSecond: format.indexOf('s') > -1,
+  };
+}
+
 export interface TimePickerProps {
   className?: string;
   size?: 'large' | 'default' | 'small';
@@ -120,9 +133,7 @@ abstract class TimePicker extends React.Component<TimePickerProps, any> {
 
     return (
       <RcTimePicker
-        showHour={format.indexOf('HH') > -1 || format.indexOf('h') > -1}
-        showMinute={format.indexOf('mm') > -1}
-        showSecond={format.indexOf('ss') > -1}
+        {...generateShowHourMinuteSecond(format)}
         {...props}
         ref={this.saveTimePicker}
         format={format}