loppupäivä

Loppupäivä is a Finnish noun meaning the final day of a period or event. The word is a compound of loppu ("end") and päivä ("day"), and it is used primarily in formal, calendar, or planning contexts to designate the last day by which actions are to be completed or the last day of a defined timeframe.

Common contexts include calendars, project timelines, contracts, and institutional schedules. For example, a notice might state that applications are due by the loppupäivä, i.e., by the end of the day on the deadline date. In everyday Finnish, speakers may prefer phrases such as päivän loppuun mennessä for "by the end of the day" or viimeinen päivä for "the final day," depending on nuance.

Although understood, loppupäivä is more common in written or formal Finnish than in casual speech. It can also refer to the final day within religious, historical, or liturgical calendars when discussing periods such as the end of a season. It should be distinguished from loppu (the end) and päivä (day); context clarifies whether it refers specifically to the end of a period or to the end of the day.

See also: Finnish calendar, deadlines, end of day.