BuildingHarmonic Calendar
13 equal months, four weeks each. See today and compare Harmonic and Gregorian dates on iPhone, iPad and Mac.
- Type
- iOS & macOS app
- Stack
- Swift, SwiftUI, WidgetKit, iOS, macOS
- Status
- Building
App Store (coming soon)
Showcase
2 items
Active media 1 of 2: Today, in Harmonic
About the project
A consistent month makes the year easier to read. Harmonic Calendar is an International Fixed Calendar variant with 13 months of 28 days, including Sol between June and July. Each month starts on Monday. Switch to Gregorian to compare the same day, browse dates, or keep today visible in a widget or the Mac menu bar. A Leap Week after December keeps the seven-day week continuous.
What it does
- 01 Equal months: four complete Monday-to-Sunday weeks, every month
- 02 Compare dates: switch between Harmonic and Gregorian with H/G
- 03 Explore the year: browse months, select a day and return to Today
- 04 Today at a glance: Home Screen and desktop widgets with their own H/G switch
- 05 On your Mac: keep today’s Harmonic date in the menu bar
- 06 Free and offline: no account, advertisements, purchases or app analytics
Need something like Harmonic Calendar?
I build products like this for clients, from first prototype to launch.