arkipäivinä

Arkipäivinä is a Finnish adverb meaning "on weekdays" or "during the working days." It derives from arkipäivä (weekday or business day) and is used to indicate a time reference that applies to the regular, non-weekend days. The term contrasts with viikonloppuna ("on the weekend") and pyhäpäivinä ("on holidays").

Usage in Finnish is to describe routines, schedules, or conditions that occur during the typical workweek. It is commonly found in written and formal contexts as well as in more precise descriptions of operating hours or activities that are tied to weekdays. In everyday speech, the shorter form arkisin is more frequently used, while arkipäivinä can carry a slightly more formal or emphatic tone and may appear in written text or specialized discourse.

Examples of use include: Arkipäivinä kauppa on auki klo 9–18. This means the shop is open on weekdays from 9 to 6. Arkipäivinä liikenne on yleensä ruuhkaista aamulla, indicating that traffic is typically congested on weekdays in the mornings. In contrast, many services or institutions may have different hours on weekends or holidays, making arkipäivinä a useful way to specify the standard weekday pattern.

Etymology and related terms: Arkipäivinä is built from arki (weekday) and the plural ed suffix forming an adverbial expression of time. Related concepts include arkipäivä (weekday, or business day) and expressions like arkisin, which convey a similar sense in everyday language.