temporal hour

noun

, Horology.

1. a unit of time used in the Roman and Ottoman empires that divided the daylight into an equal number of hours, resulting in long summer hours and short winter hours.

Word History and Origins

Origin of temporal hour¹

First recorded in 1585–95

Example Sentences

As the time between dawn and dusk varies along with the seasons, the unit house changes: temporal hour clocks were designed to adjust to this variation.

From New York Times

One had a clock hand that moved at a fixed speed in the usual manner, but with a dial whose time interval is adjusted to the temporal hour system.

From New York Times

For his temporal hour system watch, Mr. Kikuno created the first hand-winding wadokei with a mechanism programmed over a year that can lengthen and shorten the space between moving index markers.

From New York Times