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Even where temporal hours continued to be used (especially in monasteries), the mechanical clock was used. This required two different settings for the day and for the night, or one clock each for the day and the night. For the latter, the speed of the
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Due to the continuous change of the duration of daylight over the course of the year, the duration of the day division, i.e. the temporal day hours and the temporal night hours, also changes over the year.
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created during the transition to the equal-duration equinoctial hours display temporal hours in addition to the new equal-duration hours.
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periods of time because days are longer and nights shorter in summer than in winter. Their use in everyday life was replaced in the late
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448:(Waag) was changed, for example, in 26 steps (i.e., half the numerical value of 52 weeks). In the weeks of the
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Temporal hours were common in many cultures. A division of day and night into twelve hours each was first recorded in
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shows the temporal hours on curved golden lines: respective end of the hour indicated with a black number.
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Hieratische Papyri aus
Tebtunis I (Carsten Niebuhr Institute of Ancient Eastern Studies Copenhagen)
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Temporaluhren: Die Suche nach mechanischen Uhren, die mit
Temporalstunden liefen.
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Temporaluhren: Die Suche nach mechanischen Uhren, die mit
Temporalstunden liefen.
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The temporal hours of day and night are equal only at the spring and autumn
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era. They had particular relevance in the fixed daily schedule of the
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A system where hour lengths are unequal or not all 60 minutes
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For the display of temporal hours almost exclusively the
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A clock that displays the temporal hours is called a
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for the simultaneous display of temporal (black) and
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279:in summer and 8 equinoctial hours in winter.
373:This chronology is used by Jewish religious law (
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140:(red) daylight hours with a dot-shaped shadow (
388:encouraged the adoption of equinoctial hours.
217:The first temporal hour of daylight begins at
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233:are each the beginning of the seventh hour.
263:, the duration of daylight depends on the
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109:Learn how and when to remove this message
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271:. At 49° north/south latitude (e.g., in
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293:From 66.5° north/south latitude (
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252:corresponds the astronomical concept
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379:Halachic division of hours
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319:Classical Greek Antiquity
352:and were adopted in the
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520:Ancient Egyptian day
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127:wall-mounted sundial
43:improve this article
593:Die Temporalstunden
438:astronomical clocks
431:position of the Sun
368:Prayer of the Hours
315:Mediterranean basin
244:Astronomical basics
576:Karlheinz Deußer:
538:Karlheinz Deußer:
467:Terminator (solar)
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248:To the concept of
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41:Please help
36:verification
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613:Timekeeping
523: [
500:equal hours
481:(in German)
475: [
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384:Mechanical
317:from about
212:Middle Ages
194:Roman hours
145: [
138:equinoctial
130: [
608:Jewish law
602:Categories
565:References
510:Julian day
490:Civil time
257:of the Sun
125:Dial of a
69:newspapers
403:Zytglogge
332:romanized
288:equinoxes
273:Karlsruhe
250:light day
168:nighttime
153:equinoxes
462:Twilight
456:See also
361:monastic
357:Medieval
354:European
267:and the
265:latitude
231:midnight
182:biblical
166:and the
450:equinox
416:sundial
375:Halacha
334::
305:History
299:horizon
261:equator
255:Day arc
219:sunrise
190:ancient
164:daytime
83:scholar
386:clocks
364:orders
269:season
227:midday
223:sunset
172:season
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580:2012.
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505:Danna
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436:Many
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420:Nodus
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198:Latin
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142:Nodus
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90:JSTOR
76:books
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408:Bern
229:and
62:news
406:in
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344:In
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192:or
184:or
45:by
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