Afternoon

The bay of Sorrento during the late afternoon
The Türkenschanzpark in Vienna during the early afternoon

Afternoon is the time of day from noon or lunchtime until evening. There is no exact definition of the time when afternoon ends and evening starts. (This is equally true for "evening" and "night".) However afternoon is often taken to start at midday (12:00 noon). Afternoon ends and evening starts at roughly 6 pm[1] or maybe just before sunset. Afternoon is the time when the Sun is descending from its zenith in the sky to somewhat before its terminus in the westerly horizon. In human life, it occupies roughly the latter half of the standard working and school day.

Terminology

Afternoon is often defined as the time period between noon and evening.[2] If this definition is adopted, the specific range of time varies in one direction: noon is at 12:00 (for simplicity, using the 24 clock ("military time")),[3] but the boundary between afternoon and evening has no standard definition. The time period of evening is subjective, but it is often socially considered to start around 6 pm and shortly before sunset, during twilight (these may be conflicting, since the time of sunset (and twilight) vary a lot depending on season and latitude, as well as the choice of time zone).[4].

Before a period of transition from the 12th to 14th centuries, "noon" instead referred to what we now call 3 pm. Possible explanations include shifting times for prayers and midday meals, along which one concept of "noon" was defined—and so afternoon would have referred to a narrower timeframe.[5]

The word "afternoon", which derives from "after" and "noon", has been attested from about the year 1300; Middle English contained both "afternoon" and the synonym "aftermete". The standard phrasing was "at afternoon" in the 15th and 16th centuries, but has shifted to "in the afternoon" since then.[6] The term should not be confused with "after noon" (two separate words), which is a translation of the Latin post meridiem (p.m.), meaning a time between 12:00 midday and 12:00 midnight.

Other Languages
العربية: بعد الظهر
বাংলা: বিকাল
Bahasa Banjar: Kamarian
Bân-lâm-gú: Ē-tàu
català: Tarda
čeština: Odpoledne
Deutsch: Nachmittag
emiliàn e rumagnòl: Dopmezdé
español: Tarde
euskara: Arratsalde
فارسی: بعد از ظهر
galego: Tarde
हिन्दी: दोपहर
Bahasa Indonesia: Sore
italiano: Pomeriggio
Kiswahili: Alasiri
Kreyòl ayisyen: Apremidi
magyar: Délután
македонски: Попладне
Bahasa Melayu: Petang
Mìng-dĕ̤ng-ngṳ̄: Â-dáu
Nederlands: Middag (tijd)
Papiamentu: Atardi
português: Tarde
Runa Simi: Inti t'iksuy
Scots: Efternuin
سنڌي: ٽيپھري
svenska: Eftermiddag
தமிழ்: பிற்பகல்
ไทย: บ่าย
اردو: سہ پہر
Vahcuengh: Banringzgvaq
Tiếng Việt: Buổi chiều
Winaray: Kulóp
粵語: 晏晝
žemaitėška: Popėitė