You can mow your lawn according to your convenience; if you are an early bird and you wake up early in the morning, it is better to mow the lawn after 9 am in the winter and 8 am in the summer. But time may depend on your region. Sometimes, when you mow your lawn too early, your grass sticks together due to humidity and other weather conditions, therefore, it is better to mow the lawn after sunshine at your property and your grass is parched.