OrlojPrague astronomical clock
LIVE DIGITAL TWIN · PRAGUE 50.087° N

The sky,
machined in brass.

Touch or move across the instrument to tilt it in three dimensions.

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♛
PaTSThBBa
3D LIVEASTROLABECancer · 22.1°
SIMULATION TIME · PRAGUE
LIVE OUTPUTS

Read the instrument

Central European time14:00:00Roman numerals · Europe/Prague
Old Czech time16:51Gothic 24 meets sunset at 21:08
Babylonian timeHour 7 · 38 min80.1 min per daylight hour
Sidereal time08:27Local star time · little gold star
Sun♋︎ Cancer 22.1°altitude 59.8° · declination 21.6°
MoonNew Moon0% lit · age 0.1 d · altitude 63.0°
Day arc05:07 — 21:0816.03 hours above the horizon
Next crossingSunset 21:08The Sun meets Prague’s projected horizon
Tuesday14 July 2026Day 195 / 365
THE CALENDARIUM

The year turns below the sky

The lower disk makes one revolution each year. Mánes’s twelve medallions portray seasonal rural work; the perimeter locates the current day within its week, month and year.

The supplied photograph of the Prague Orloj used as the realism reference
REAL-WORLD REFERENCE

Your photograph shaped the new material palette.

Oxidized turquoise, warm copper, weathered stone and the actual façade now anchor the digital twin.

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