This from Rowland Croucher....

"Where is the pressure coming from? The survey indicates that it is not the members or the church board. It is the ministers themselves. The pastors show a consistent inability to set reasonable limits on their workload. More than two out of three respondents say that they expect too much of themselves. A little over half say that they love what they do so much that they don't know when to stop.
The typical pastor spends about 14 hours planning and attending meetings or services. Another 13 hours is invested in sermon preparation and teaching. Pastoral care and counseling take some nine hours. Six hours are spent in personal devotions and prayer. All types of administrative and budget tasks, advanced planning and the like absorb 13 hours."

Source