For most runners, when we are training, we go for runs when it is most convenient for our schedule. It may be dependent on a work schedule, when the kids have to go to school or have their own activities or when you are able to meet up with friends to go for a group run.
Another thing to consider when deciding when to run is whether you need to eat beforehand. Usually for longer runs you’ll need to eat a banana or some oatmeal or perhaps drink a cup of coffee. There are many considerations to make when it comes to deciding when to run. In this article linked below from Asics Running, the author lists some pros and cons of running at different times of the day.
Running in the Morning vs. at Night