A swiss watch is being shown in a museum which has a very peculiar property. It gains as much in the day as it loses during night between 8 pm to 8 am. In a week how many times will the clock show the correct time ?

Because the clock gains exactly as much during the day as it loses at night, its net error over 24 hours is zero, so it shows the correct time every day at the exact moment it was set. Assuming it was set at 8 am, it will show the correct time once per day for seven days, plus four additional times on the first day during its initial transition, resulting in 8 times.

• Thanks
• Wrong explanation