Hey there, look at it this way, the GMT hand moves at half the speed of the Main (Local) Hour hand. Thats why the GMT hands makes 1 full revolution in 24hrs whilst the hour hand does 2 revolutions.
When the Main Hour hand shows 10 'o Clock, the GMT should show 14:00 hours exactly. However after that, the Main Hour hand will keep moving on at the usual speed, the GMT hand will move at its usual half-pace.
Simply put, the main and GMT hands should align with their markers perfectly on the top of the hour. Check it out at the next hour and let us know!
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