[Anechoic]

I had read the article and read that section, but it doesn't answer my question - all that says is that teachers on break weren't included in the study, that doesn't say whether or not the data taken from the teachers included in the study were averaged across a (working or school) year just across the interviewees.

But thank you for your respectful response.

[yummyfajitas]

In the ATUS, interviewers collect data in a time diary format, in which survey participants provide information about "yesterday."

So no, it's not averaged across a year (unless the teacher worked a full year).