Dinner’s clock was a status symbol
Louis XIV ate his main meal at noon. By 1765 George III dined at 4 p.m.; fashionable Paris shocked English visitors by waiting until 7. A mid-Victorian satire sneered that dining at 2 p.m. looked "tradesman-like." When you ate said who you were.
In many Western cultures dinner is the largest, most formal meal. Historically that feast sat near midday; from the 1500s through the 1800s elites pushed it later. The word comes from Old French disner, ultimately "to break one’s fast," like Romanian dejun—yet it drifted to mean the heavy main meal even after breakfast. Hot climates still favor evening mains after temperatures drop. Christmas or Sunday "dinner" can remain an afternoon event. Working-class speech in parts of northern England and Scotland may still call the midday meal dinner.
Lighting, commuting, and class moved the hour. Marie Antoinette in 1770 described court dinner at 2 p.m. and supper near 10 after theatre. By about 1850 English middle classes aimed for 5 or 6 p.m. so men could return from work, while elites without fixed hours kept sliding later. John Ruskin’s 6 p.m. dinners struck his parents as unhealthy; fictional Mr Pooter preferred 5 to his son’s fashionable 8. Henry Mayhew’s 1855 novel has a hero dining at 7 and calling 8 the "Royal hour," twisting a famous food aphorism so that mealtime—not menu—reveals social rank.
Today dinner usually means the evening meal, with supper as a synonym or a later snack. A Jacob’s Creek survey put average UK evening eating at 7:47 p.m.; U.S. peaks cluster near 6:19 p.m., earlier in Pennsylvania and Maine, later in Texas, Mississippi, and Washington, D.C. Formal parties still script black-tie or white-tie dress and service styles—Russian courses plated sequentially, French displays served at once, guéridon tableside finishing, English butler service. From Roman convivium to state banquets, dinner remains as much schedule and signal as sustenance.
Source: Dinner
