Horologium Romanum
The Roman Clock
$1.99 · Designed for iPad. Not verified for macOS.
Shows the time in Roman numerals (VIII:IX), and the date as, for instance, “Ante Diem Kal. XII Ivlivs” for 12 days before the Kalends of July.
The day, the date, the proverb of the day, and the help text can all be in either English or Latin. You’ll use Latin of course – I’ve just provided the English text for other people who are less erudite than you.
For those who seriously want to be Roman, the time can optionally be measured Roman style – still a twenty four hour day, but with the twelve hours of day measured from sunrise to sunset, and the twelve hours of night measured from sunset to sunrise. This way of measuring time has three notable properties;
- hours and minutes will be a slightly different length each day, as the seasons pass and the days get shorter or longer.
- hours and minutes will be a slightly different length at different latitudes, even on the same day. This is why the app asks you to let it use your location when you’re using Roman style time – it needs it to work out the sunrise and sunset times.
- you will never be on time for an appointment again
As the help text says:
“Sequens programmatiunculum ad Horologium Romanum pertinens conscripsi ut peregrinatoribus qui ab Imperio Romano ad haec tempora iter faciunt auxilio sit. Immo vero etiam aliis lectoribus forsitan utile esse possit.”
That is to say – “Horologium Romanum – The Roman Clock app – was written as an aid to time travellers from the Roman Empire who have chosen to visit the 21st century. Even if you do not fall into that group you may still find it useful.”
Minor fixes.
The developer, Stephen Taylor, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Stephen Taylor
- Size
- 15.5 MB
- Category
- Utilities
- Compatibility
Requires iOS 11.0 or later.
- iPhone
Requires iOS 11.0 or later. - iPad
Requires iPadOS 11.0 or later. - iPod touch
Requires iOS 11.0 or later. - Mac
Requires macOS 11.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2025 Teapot-7 Software Development
