Description

SundialClock is a real sundial, computed for where you are. The hour lines are drawn for your latitude and the shadow follows the real sun: its direction gives the hour, its length changes with the height of the sun, long in the morning and in winter, short at noon in summer. Like a real sundial it shows true solar time, which is not clock time: it depends on your longitude, on the time of year (up to 16 minutes) and on daylight saving time. The face tells you how far the clock is from the sun ("clock +1:00"). You can also choose to show clock time. At night the sundial is silent (Sine sole sileo) and the moon takes over, with its phase and, when it is up, its shadow. Five sundials: Classic: bronze horizontal sundial with Roman hours and a Latin motto that changes every day Minimal: one dot per hour and the shadow Analemmatic: hours on an ellipse, the gnomon moves with the date, and the sun in numbers (latitude, declination, equation of time, hour angle, altitude) Roman marble: a hemicyclium carved in marble; the tip of the shadow shows the temporal hour (twelve hours from sunrise to sunset) and the season Black marble: the same sundial in negative, light lines and a light shadow on black stone; it lights few pixels, so it uses less battery on AMOLED screens It works in both hemispheres: in the south the dial is mirrored. The watch face uses the last position known to the watch (from an activity or from the weather); you can also type a position in the settings.

Screenshots

SundialClock · Screenshot 0 SundialClock · Screenshot 1 SundialClock · Screenshot 2 SundialClock · Screenshot 3 SundialClock · Screenshot 4

Supported languages (2)

English Italiano

Compatible devices (204)

Approach® S50 Approach® S62 Approach® S62 Approach® S70 (42mm) Approach® S70 (47mm) Captain Marvel Captain Marvel D2™ Air D2™ Air X10 D2™ Air X15 D2™ Charlie D2™ Delta D2™ Delta PX D2™ Delta PX D2™ Delta S D2™ Mach 1 D2™ Mach 1 Pro D2™ Mach 2 D2™ Mach 2 Pro Darth Vader™ Darth Vader™ Descent™ G2 Descent™ Mk1 Descent™ Mk1 Descent™ MK2 Descent™ MK2 Descent™ Mk2S Descent™ Mk2S Descent™ MK3 - 43mm Descent™ MK3i - 51mm Enduro™ Enduro™ Enduro™ 2 Enduro™ 3 epix™ (Gen 2) epix™ (Gen 2) epix™ Pro (42mm) epix™ Pro (47mm) epix™ Pro (51mm) fēnix® 5 fēnix® 5 fēnix® 5 Plus fēnix® 5 Plus fēnix® 5S fēnix® 5S fēnix® 5S Plus fēnix® 5S Plus fēnix® 5X fēnix® 5X fēnix® 5X Plus fēnix® 5X Plus fēnix® 6 fēnix® 6 fēnix® 6 Dual Power fēnix® 6 Pro fēnix® 6 Pro fēnix® 6 Pro Dual Power fēnix® 6 Pro Solar fēnix® 6 Solar fēnix® 6S fēnix® 6S fēnix® 6S Dual Power fēnix® 6S Pro fēnix® 6S Pro fēnix® 6S Pro Dual Power fēnix® 6S Pro Solar fēnix® 6S Solar fēnix® 6X Pro fēnix® 6X Pro fēnix® 7 fēnix® 7 fēnix® 7 Pro fēnix® 7 Pro – Solar Edition (No Wi-Fi®) fēnix® 7S fēnix® 7S fēnix® 7S Pro fēnix® 7X fēnix® 7X fēnix® 7X Pro fēnix® 7X Pro No Wi-Fi fēnix® 8 AMOLED (43mm) fēnix® 8 AMOLED (47mm/51mm) fēnix® 8 Pro fēnix® 8 Solar (47mm) fēnix® 8 Solar (51mm) fenix® 9 - 43 mm fenix® 9 – 47 mm fenix® 9 Pro - 43 mm fenix® 9 Pro - 47 mm fenix® 9 Pro - 51 mm fenix® 9 Pro - Solar 47 mm fenix® 9 Pro - Solar 51 mm fēnix® Chronos fēnix® Chronos fēnix® E First Avenger First Avenger ForeAthlete 245 ForeAthlete 245 Music ForeAthlete 645 ForeAthlete 645 Music ForeAthlete 745 ForeAthlete 935 Forerunner® 165 Forerunner® 165 Music Forerunner® 170 Forerunner® 170 Music Forerunner® 245 Forerunner® 245 Forerunner® 245 Music Forerunner® 245 Music Forerunner® 255 Forerunner® 255 Music Forerunner® 255S Forerunner® 255S Music Forerunner® 265 Forerunner® 265S Forerunner® 570 - 42mm Forerunner® 570 - 47mm Forerunner® 645 Forerunner® 645 Music Forerunner® 70 Forerunner® 70 Forerunner® 745 Forerunner® 935 Forerunner® 945 Forerunner® 945 Forerunner® 945 LTE Forerunner® 955 Dual Power Forerunner® 965 Forerunner® 970 Instinct® 3 – 45 mm, AMOLED Instinct® 3 – 50 mm, AMOLED Instinct® Crossover AMOLED MARQ® (Gen 2) MARQ® Commander (Gen 2) – Carbon Edition MARQ™ Adventurer MARQ™ Adventurer MARQ™ Athlete MARQ™ Athlete MARQ™ Aviator MARQ™ Aviator MARQ™ Aviator (Gen 2) MARQ™ Captain MARQ™ Captain MARQ™ Commander MARQ™ Commander MARQ™ Driver MARQ™ Driver MARQ™ Expedition MARQ™ Expedition MARQ™ Golfer MARQ™ Golfer Mercedes-Benz Venu® Mercedes-Benz Venu® Mercedes-Benz Venu® 2 Mercedes-Benz Venu® 2 Mercedes-Benz Venu® 2S Mercedes-Benz Venu® 2S quatix® 6 quatix® 6X Rey™ Rey™ tactix® 7 tactix® 7 – AMOLED Edition tactix® 8 – 47 mm, AMOLED tactix® 8 – 51 mm, Solar Venu® Venu® Venu® 2 Venu® 2 Venu® 2 Plus Venu® 2 Plus Venu® 2S Venu® 2S Venu® 3 Venu® 3S Venu® 4 – 41 mm Venu® 4 – 45 mm Venu® Sq. Venu® Sq. Venu® Sq. Venu® Sq. Venu® Sq. 2 Venu® Sq. 2 Music Venu® Sq. Music Venu® Sq. Music Venu® Sq. Music Venu® Sq. Music Venu® X1 vívoactive® 3 vívoactive® 3 vívoactive® 3 vívoactive® 3 Mercedes-Benz® Collection vívoactive® 3 Mercedes-Benz® Collection vívoactive® 3 Music vívoactive® 3 Music vívoactive® 3 Music vívoactive® 4 vívoactive® 4 vívoactive® 4S vívoactive® 4S vívoactive® 5 vívoactive® 6

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Snapshot dates
2026-10-27 → 2026-10-28