It is very difficult to understand SQL Server Agent scheduled job schedules when there are many of them. Starting times of jobs are in text. Job history is also in textual form. When there are many jobs, the DBA is drowns in a sea of data devoid of information. The Outlook Calendar does a great job of showing overlaps and conflicts from people's calendars when scheduling a meeting for a group of people. SQL Server needs a graphical tool similar to that. There is a free tool http://www.sqlsoft.co.uk/sqljobvis.php that provides a lot of clarity for completed and running jobs.