BitComet’s maximum time to seed has been arbitrarily topped at 1,000 minutes, or 16 hours and change.
There are sites that require seeding to a minimum ratio (which is almost never achieved) or a minimum seeding time of 48 hours.
BitComet could easily accommodate this by raising the maximum seed time. There’s no good reason that I can see for the arbitrary limit of 1,000.
If there has to be a maximum below the field datatype, it should be at least 10,000 minutes.