What are Time Slots?

What is the difference between time slot and time window slot time meaning time An Area Timed Entry Ticket: Advance Booking can A limited number of Timed Entry Tickets Standby Entry Tickets are available for each time slot slot machines online play 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:

slot machine happy birthday before to 15 min after the selected time slot Visitors are advised to arrive 30 minutes before their selected timed entry slot Regarding the combined ticket,