A person's watch is 15 seconds faster than the clock at home, and it is known that the clock at home is 15 seconds slower than the standard time, how many seconds is this fast watch compared with the standard time (fill in how many seconds faster or slower)
某人一块手表比家里的钟每小时快15秒，已知家里的钟比标准时间每小时慢15秒，则这快手表比标准时间一昼夜多少秒(填快或慢多少秒)
<gadget id="calculator">3_615 / 3_600</gadget>
<output>241/240 = around 1.004167</output>

<gadget id="calculator">3_600 - 15</gadget>
<output>3_585</output>

<gadget id="calculator">1 / 3_585</gadget>
<output>1/3_585 = around 0.000279</output>

<gadget id="calculator">(241/240) / (1/3_585)</gadget>
<output>57_599/16 = around 3_599.9375</output>

<gadget id="calculator">3_600 - (57_599/16)</gadget>
<output>1/16 = around 0.0625</output>

<gadget id="calculator">(1/16) * 24</gadget>
<output>3/2 = around 1.5</output>

<result>3/2 = around 1.5</result>