7.76. Working‑time arrangements encompass measurable characteristics of a job that refer to the organization (length and timing) and scheduling (stability or flexibility) of work and non‑work periods during a specified reference day, week, month or longer period and apply to all types of jobs (within and beyond the SNA production boundary), including in informal employment and in agricultural communities;[1] more specifically:
(a) The organization reflects the length and timing of the working time in a job:
(i) The length may be shorter or longer than a norm based on national circumstances and there may be fewer or more daily or weekly hours, fewer or more days worked per week for a short reference period or fewer weeks (part‑year) for a long reference period;
(ii) The timing may be inside or outside core hours or core days (i.e., the job may be performed at night or at weekends);
(b) The scheduling reflects, inter alia, the stability or flexibility of the length and timing of working time in a job from one day, week or longer period to the next, shifts that vary every day or week, and different entry and exit times.
7.77. Formalized working‑time arrangements encompass specific combinations of the organization and scheduling of working time that are recognized, e.g., by law or collective agreement. They may be stipulated in explicit or implicit employment contracts.
7.78. Thus, in self‑employment or household service and volunteer jobs, may be practiced whereby a formalized working‑time arrangement is based on, e.g., work requirements, or personal or household preferences (based on, inter alia, customer contracts or fixed opening hours of shops or schools).