catering industry, beauty salon industry, domestic service, retail industry.

1. Catering industry: You can rest at noon when you work in restaurants, teahouses and other catering places, because the business hours of most catering places are usually from 11 am to 11 pm, and noon is a peak time for business.

2. Beauty salon industry: People who work in the beauty salon industry can usually have a rest at noon, because most people choose to rest or eat out at noon.

3. Domestic service: In the domestic service industry, many kinds of jobs can be rested at noon, such as hourly workers and cleaning staff, which are flexible because they need to work in customers' homes.

4. Retail industry: supermarkets, shopping malls, etc. can choose working hours, and noon is usually a relatively free time period.