TIME SLOT definition and meaning

In a course of Google, there is an example where a query shows 13 elapsed time seconds and 50 minutes of slot time consumed They says:

A television or radio programme's time slot is the time when it is broadcast 90 per cent of listeners had stayed with the programme

slot fortune gems jili games rules A time slot management system enables customers to choose delivery timings based on availability and convenience An optimized time slot booking software is

slot gacpr A SLOT is a given time where an aircraft is allowed to take off A plane departing at 1200 can have a SLOT in a period 5 minutes before and 10