- the appropriate time or past the appropriate time: It’s high time he got out of bed.
- the latest possible time; a time that is almost too lateit’s high time you mended this shelf
- Also called: high old time an enjoyable and exciting time
The appropriate time for something; also, past the appropriate time. For example, It’s high time we did something about Martha’s dog, or It’s high time you children were in bed. The precise meaning of this term depends on the tone of voice and/or the context. For a synonym, see about time.