anywhereman.com One of the things I dislike about the use of blocks of time when scheduling is the tendency to use that entire block of time. When a speaker has an hour for a presentation, they're going to use that full hour. When a pastor has 45 minutes, they're going to use that 45 minutes. When we schedule a half-hour for a meeting, we tend to use that half-hour. Don't be afraid to keep things as short as possible!