Calendars

Calendars translate internal ticks into the dates used by your world. A project can have several calendars describing the same underlying time in different ways.

Create a calendar

Open Calendars and choose the add action. In the centered modal, enter a name, then start from:

• Gregorian for twelve months, weekday overlays, and familiar leap behavior.
• Seasonal for a simple four-span, 90-day seasonal cycle.
• Blank for a minimal definition you will build yourself.

Choose Create, or press Cmd/Ctrl+Enter. The new calendar opens immediately. While creating, fields and dismissal are locked. A failed request keeps your name and template so you can correct them or try again.

Templates are starting points, not global presets. Editing the created calendar does not change other calendars made from the same template.

Browse and manage calendars

The list shows each calendar’s name, primary chain or unit summary, and last update. Select a row to open it.

Use the delete action to remove a calendar after confirmation. This cannot be undone from the list. A calendar still referenced by dates or configuration may need those references changed first.

Rename a calendar

Open it and select the title. Enter the new name, then press Enter or leave the field to save. Press Esc to keep the old name.

Enter and Escape wait until text composition has finished and ignore modifier keys. While saving, the name is locked. A failed save keeps the entered name and shows an error; correct the name or press Enter on the focused error to retry. Saving from the name field or cancelling returns focus to the title.

The title saves independently from definition drafts.

A temporary background refresh failure keeps the entered name, Definition and Events drafts, and the selected tab. Use Retry to refresh the saved data. If the calendar has been deleted or you no longer have access, editing is removed. An initial load failure shows Retry before the editor opens.

Use a calendar

Select a compatible calendar from Project time to format the sidebar date, jump grid, and date property values. Changing calendars changes how the same stored moments are displayed.

Continue to Build a calendar definition for units, spans, leap rules, and overlays, or Events and converter for recurrence and date conversion.