A watch for civil time and the solar day.<\/strong> Iphone Display.<\/p>\n\n\n\n a WHAT YOU HAVE<\/strong><\/p>\n\n\n\n A functioning civil-time and apparent-solar-time watch, implemented with a scalable vector dial and locally calculated astronomy. The hands, solar-noon window, date, equation-of-time pointer, digital readouts, sunrise\/sunset, and Sun-bearing marker are calculated from one selected instant and location.<\/p>\n\n\n\n PHONE HOME SCREEN<\/strong><\/p>\n\n\n\n On iPhone\/iPad: open the hosted watch in Safari, tap Share, then Add to Home Screen. Enable Open as Web App if offered.<\/p>\n\n\n\n On Android: open it in Chrome, then use Install app or Add to Home screen from the browser menu. A direct installation prompt appears only when the browser offers one.<\/p>\n\n\n\n Installation and Home Screen options vary by browser and operating system.<\/p>\n\n\n\n USE LIKE A WATCH<\/strong><\/p>\n\n\n\n – Watch view hides the controls and emphasizes the dial and digital readouts. Use Exit watch view or Escape to return.<\/p>\n\n\n\n – Keep screen awake requests your browser’s screen wake lock.<\/strong> It works only on supported devices while visible and may be released by power management.<\/p>\n\n\n\n – Show\/hide the seconds hand and choose 12-hour or 24-hour civil readouts. The solar-noon window always uses 24-hour time to avoid ambiguity.<\/p>\n\n\n\n – Print readings opens the browser print dialog for a snapshot of the dial and calculated values.<\/p>\n\n\n\n – This is not a phone lock-screen replacement and does not guarantee background operation.<\/p>\n\n\n\n READING THE DIAL<\/strong><\/p>\n\n\n\n Silver hour\/minute hands: civil time.<\/p>\n\n\n\n Thin pale seconds hand: device-clock seconds, optionally hidden.<\/p>\n\n\n\n Gold Sun hand: apparent solar time, one revolution per 24 solar hours. Noon is 12 at the top; midnight is 00 at the bottom.<\/p>\n\n\n\n Date window: civil date for the selected time zone.<\/p>\n\n\n\n Solar-noon window: calculated local meridian crossing, shown in civil time and rounded to the nearest minute.<\/p>\n\n\n\n Equation-of-time gauge: apparent minus mean solar time, with a -20 to +20 minute range.<\/p>\n\n\n\n Orange bezel marker: calculated solar azimuth, relative to the manually selected top-of-phone bearing. It dims when the Sun is below the geometric horizon.<\/p>\n\n\n\n The bezel is a diagram\/manual direction reference, not a sensor-driven compass. Default 0 degrees means north-up. It does not automatically align with the real world as you turn your phone.<\/p>\n\n\n\n ___________________________________________________<\/p>\n\n\n\n Watches that display both civil time (mean solar time) and true solar time use a rare horological feature known as the Equation of Time.<\/strong><\/p>\n\n\n\n How It Works<\/p>\n\n\n\n Notable Examples in Haute Horlogerie<\/strong><\/p>\n\n\n\n Because these movements require a specialized internal kidney-shaped (parabolic) cam to track the sun’s irregular path, they belong to the highest tier of mechanical watchmaking:<\/p>\n\n\n\n _____________________________________________________<\/p>\n\n\n\n Mechanical luxury watches that track both civil time and the solar day represent the absolute peak of astronomical watchmaking.<\/strong><\/p>\n\n\n\n They fall into two design categories: Equation Marchante (where a dedicated, continuous “running” hand tracks the sun’s time directly alongside the civil minute hand) and Standard Equation of Time (which uses a scale or sub-dial to show you how many minutes to add or subtract).![\"HelioSync](\"https:\/\/audaciouscat.com\/rabbit\/wp-content\/uploads\/2026\/10\/heliosyncapp.png\")
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The premier options available from top horological houses include:
Breguet Marine Tourbillon \u00c9quation Marchante 5887
$253,400.00
swisswatchesforsale.com<\/p>\n\n\n\n\n
Panerai Luminor \u00c9quation of Time (PAM00670)
$25,900.00
Panerai United States<\/li>\n\n\n\n
Audemars Piguet Jules Audemars \u00c9quation of Time
$65,850.00
Diamond Source NYC<\/li>\n\n\n\n
Would you like to explore how these Equation Marchante gears are physically engineered, or do you want to narrow down your options based on a specific case material like platinum or rose gold?
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HeloSync Meridian Watch (Web App) $4.99
https:\/\/payhip.com\/b\/sfqKZ<\/a>
For only $4.99 you can have a real working Equation of Time
watch. Its a web App that is amazing.
Use your current location by clicking a button and the App automatically finds you Latitude and Longtitude so your solar time will be correct for where you live.
Use your device Time Zone.
Add to phone\/Install button on App.
Add the watch to your Home Screen.
Click Keep screen awake button to display your watch.
Or click Stop keeping awake.
A truly beautiful Web App that functions like an expensive Mechanical luxury watch.
I have one on my Iphone 16.
I use the Keep screen awake to display A real Equation of Time Watch.
HelioSync Meridian Watch App.
Makes a nice gift.
HeloSync Meridian Watch (Web App) $4.99
https:\/\/payhip.com\/b\/sfqKZ<\/a>
For only $4.99 you can have a real working Equation of Time
watch. Its a web App that is amazing.
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