You can cancel a tee-time as long as you're a day ahead of the booking (24hrs in advance minimum) and as long as it's not paid. To do so:

1. Log in your profile on www.chronogolf.com and click on ‘’cancel’’ next to your tee-time.
2. You can edit a booking by logging into your profile and clicking on ''edit''.
3. Follow the steps as seen in the screenshots below: