Meaning of the word "ahead of time" in English

What does "ahead of time" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

ahead of time

US /əˈhɛd əv taɪm/
UK /əˈhed əv taɪm/
"ahead of time" picture

Idiom

before the scheduled or expected time

Example:
We arrived at the airport an hour ahead of time.
It's always good to prepare your presentation slides ahead of time.