The survey is conducted approximately every 10 years in six waves from September to September among ordinary households and their members. It is a ‘diary’ survey. First, a questionnaire is used to ask the respondent about his practices over a long period of time and about his irregular or infrequent activities. The respondent is interviewed face-to-face by an interviewer during a visit to his home. A daily diary is then used, in which the respondent must record details of his activities during two specified days, one weekday and one weekend day. In this diary, each line corresponds to a basic period of 10 minutes. It measures the time taken by an activity at the moment it is performed, or shortly afterwards, and therefore does not rely on memory. Respondents describe their schedule throughout the day, noting the start and end times of each activity.

This diary can be completed on paper, as in previous surveys, or online via a mobile phone or computer.

To take into account seasonal variations in schedules, data for this survey are collected over a period of one year.

• composition of the household;
• description of the home;
• household environment and equipment;
• income, benefits received;
• place of work, travel time, activity;
• ways of looking for employment;
• studies and training;
• sports, recreation;
• everyday housework;
• associative activities;
• state of health;
• use of time, lack of time;

Individual and household

The survey covers all households living in mainland France in ordinary housing. The individuals surveyed within these households are aged 11 or over on 31 December 2025 and live in this accommodation for more than half of the time.

A maximum of three people are interviewed per household: the person in contact with the interviewer, their spouse (if applicable) and one of the children in the household aged 11 or over, chosen at random.

2025-2026