Scheduled time

In rallying, the Scheduled Time of any crew is the time, calculated at the beginning of the event, that they should arrive at any given control. It is different from Due Time in that Due Time is dynamic, and can change throughout the event as competitors drop time; whereas Scheduled Time is fixed from the start of the event. Scheduled Time is used to calculate whether a crew is Over Time Limit (OTL). 
Penalties.
There are various systems for applying penalties.