Day may refer to:
- the day of the week (e.g., Monday, Tuesday);
- the day of the month (e.g, 2nd day of February);
- a unit of time (e.g., this task would take 2 days to complete).
A date on the other hand usually has the month and the year along with the day: the 21st February 2011. It also has a fixed quality I think. I was wondering if there are any other differences between day and date, and when it's correct to choose one over the other. By that I mean I am interested in the meanings and usage of date that pertain to time.