Anytime can be used at any time during the day from which your ticket is valid. It is valid up until 04:30 the next day.
Off-Peak tickets can only be used from 09:30 Monday to Fridays, and all day on Saturdays, Sundays and public holidays. It is valid up until 04:30 the next day.
Contactless is the use of an Oyster card or a bank card which supports contactless payments.
A daily cap is the maximum you will pay a day if using contactless. This is the equivalent to a cash Travelcard ensures you never pay more than necessary.