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From the very earliest methods for measuring time such as water clocks and hourglasses to cutting-edge examples of the art of clock-making, the story of time is told here.

Exhibition closed

The second half of the museum is currently being renovated, which is why this area has been closed since July 2022. The modernisation of the exhibition is scheduled to be completed in 2028, the 125th anniversary of the museum's founding.

What is time?

The question of what time actually is and whether it exists at all has not yet been conclusively answered. Nevertheless, dealing with time in our everyday lives, in sport, in technology and in many areas of the natural sciences is a matter of course and seems completely straightforward. In most cases, the measurement of time appears to be a clear task that can easily be performed with a watch. Problems apparently only emerge when we think more deeply about the phenomenon of time.

“What then is time? If no one asks me, I know what it is. If I wish to explain it to him who asks, I do not know.”
Augustine of Hippo, Roman bishop and philosopher, 4th century AD

The exhibition gives an insight into the variety of clocks that have been created over the centuries. Different functional principles have supplanted one another, always with the goal of measuring regular natural processes accurately. For example the sundial, whose time display is directly dependent on the apparent movement of the star that is at the centre of our solar system. The pulse generators in clocks have changed over time, becoming increasingly accurate. Starting with the pendulum and the coil spring, we now rely on the oscillation of quartz or the measurement of microwaves that are emitted by atoms.

“What really matters anyway is not how we define time, but how we measure it.”
Richard Feynman, American physicist, 1963

Experience Chronometry live


  • 220m² exhibition area
  • The exhibition is on Level 3.

Exact time

Quarzuhr mit Elektronenröhren "CF Qu" von Rohde & Schwarz

From: Physikalisch-Technisches Entwicklungslabor Dr. L. Rohde & Dr. H. Schwarz

Date: 1938

Druckchronograph nach J. v. d. Heide

From: H. Wetzer

Date: 1953

Kathodenstrahloszillograf für Hochspannung mit Eichsender

From: Technische Hochschule <Aachen>

Date: 1951

Präzisionspendeluhr Sattler Mod. 1958

From: Erwin Sattler

Date: 1998

Chronoskop nach Hipp

From: Peyer Favarger & Cie.; Hipp, Matthäus; Peyer Favarger & Cie.

Date: Ende 19. Jh.

Präzisionspendeluhr Nr. 1 von S. Riefler

From: Riefler, Sigmund

Date: 1890

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