<picker mode="time" value="{{time}}" start="09:01" end="21:01" bindchange="bindTimeChange">
    <view class="picker">
        <view style="font-size: {{txtfontsize}}rpx; color:{{txtcolor}};margin: {{txtmargin}};">{{txt}}</view>
        <view style="font-size: {{datefontsize}}rpx; color:{{datecolor}};margin: {{datemargin}};">{{time}}</view>
    </view>
</picker>