How many degrees does the hour hand rotate around the center of the clock face from 6:00 to 18:00
时针从6：00走到18：00是围绕钟面的中心点旋转多少°
<gadget id="calculator">360 / 60</gadget>
<output>6</output>

<gadget id="calculator">6 * 60</gadget>
<output>360</output>

<result>360</result>