The two needles on the face of an old clock overlap every 66 minutes. How many minutes is this old clock fast or slow in a day of standard time.
一旧钟钟面上的两针每66分钟重合一次，这只旧钟在标准时间的一天中快或慢多少分钟．
<gadget id="calculator">1_440 / 121</gadget>
<output>1_440/121 = around 11.900826</output>

<result>1_440/121 = around 11.900826</result>