Desktop calendar
Choose a 1–6 week view, starting weekday, week numbers, lunar dates, seasonal markers, colors and print layout.
A KINDER WAY TO SEE YOUR DAY
Everything in your day,
at a glance.
ONHARU places your calendar on the Windows desktop—behind desktop icons and always close at hand. Keep private plans on your PC, and connect Google Calendar and Google Tasks only when you choose.
One calm place for the whole day.
A desktop calendar designed for quick reading, dependable local storage and optional cloud sync.
Local-first data
Local schedules and settings stay on this Windows PC. Back up and restore them with JSON, or exchange calendar data with ICS and CSV.
Google Calendar & Tasks
View and edit calendars you authorize, and optionally manage Google Tasks. ONHARU does not relay Google schedule data through its own server.
Todo and recurrence
Track completed work, carry unfinished Todo items forward, and create daily, weekly, monthly, yearly and holiday-aware recurrence rules.
D-Day, anniversaries & alarms
Keep deadlines, important dates, alarms, timers and an independent timetable beside your main calendar.
Pastel or black
Use a bright pastel theme or a high-contrast black theme, with adjustable opacity and carefully separated schedule colors.
Your schedule belongs to you.
There is no ONHARU membership account or central schedule database. Google access is used only for the synchronization you request, and Google data is never used for advertising.
- Local schedules remain on this PC
- OAuth tokens are protected with Windows DPAPI
- No third-party advertising SDK or behavioral tracking
- Read-only Google calendars are protected