Execute cronjob in time range

If you want to execute your cronjob in a time range, e.g. from 5AM to 9AM only, when editing cronjob, click Time settings button next to When to call field. You can select desired Hour values there, e.g. from 5 to 9.

Hold Ctrl (Windows) or Command (OS X) key to select multiple values, or use Quick select button below.