reset-ticks sets the tick counter back to zero. It is only used in models that use tick-based updates. reset-ticks is usually found at the end of a setup procedure. 
Things to keep in mind when using reset-ticks:
tick means, refer to the tick item in this same dictionary.tick primitive without resetting the ticks first with the reset-ticks primitive, NetLogo will show an error.disable until ticks start option when a button is created.In the model example below, we have a bike and 5 houses. Our bicycle goes between the houses during the day (between the ticks 10 to 15) and delivers newspapers. At night, it goes back to the center. Every time the tick counter hits 24, we reset the ticks.
Once you mastered the reset-ticks primitive, don't stop there. Check out the resources below to improve your NetLogo skills. 
reset-ticks primitive: