If this option is activated, overrun will be calculated on on time interval untill the next "fix" screen.
•Offset : Beginning of the calculated time interval by adding this offset to a full hour.
•Duration : Time interval duration on which overrun applies. The end of the interval must match the beginning of a "fix" screen. But the interval can be composed of different types of screens, even multiple "fix"screens.
For example, if the playlist starts à 9:00 and the offset is 5 minutes, the time interval will begin after all full hour, so 9:05, 10:05, etc...for 55 minutes. The end of the interval will be 10:00, 11:00, etc...