Codes

This is a 4-digit numeric variable.

Description

CLOCKST reports the start time of the activity on the 24 hour clock.

Comparability

Between 1965 and 1998, respondents report activities from midnight of the previous day to midnight of the interview day. In the ATUS (2003 forward), respondents report their activities from 4:00 a.m. of the previous day to 4:00 a.m. of the interview day.

Universe

Availability

• 1930, 1965, 1975, 1985, 1993, 1995, 1998, 2003-2012, 2018

Flags