part-time

A part-time job is a form of employment that carries fewer hours per week than a full-time job. Workers are commonly considered to be part-time if they work fewer than 30 hours per week. Their hours of work may be organised in shifts. The shifts are often rotational.
According to the International Labour Organization, the number of part-time workers has increased from one-quarter to a half in the past 20 years in most developed countries, excluding the United States. There are many reasons for working part-time, including the desire to do so, having one's hours cut back by an employer and being unable to find a full-time job. The International Labour Organisation Convention 175 requires that part-time workers be treated no less favourably than full-time workers.
In some cases the nature of the work itself may require that the employees work part time. For example, some amusement parks are closed during the winter months and keep only a skeleton crew on hand for maintenance and office work. As a result of this cutback in staffing during the off season, employees who operate rides, or run gaming stands or staff concession stands may be classified as part-time workers owing to the months-long down time during which they may be technically employed, but not necessarily on active duty.

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