---
title: Working calendars
summary: Define the days and hours a project works, and the holidays when it does not, so schedule dates skip non-working days.
order: 4
menu: Company settings > Planning > Working Calendar
route: /workingcalendars
who: People who have the View Calendars permission. Creating and importing need Add. Editing needs Edit. Deleting needs Delete.
---

A working calendar tells Superwise which days a project works. It has a weekly day off, such as Sunday, and a list of other days off, such as a festival or a monsoon stop. When Superwise plans a schedule, it counts only the working days. You create the calendars once and choose one for each project.

## Before you start

Nothing is needed first. Make the calendars before you create projects, so you can choose one when you set up a project.

## How to create a working calendar

1. Open **Company settings > Planning > Working Calendar**.
2. Click **Add Calendar** (mark 1 in the list picture).
3. Type a name in **Name** (mark 1 in the form picture). For example, `Standard working calendar`. The name is required.
4. Choose a day in **Start Of Week** (mark 2). This is required.
5. In **Weekly Off** (mark 3), choose the days that are off every week. The list does not offer the day you chose as the start of the week. Leave **No weekly off** if the project works all 7 days.
6. In **Start-Time / End-Time** (mark 4), choose a start hour and an end hour. This step is optional. You can clear each choice.
7. In **Non-Working Days** (mark 5), click each date that is a day off. Click a date again to remove it. Each chosen date also appears as a small tag under the calendar. Click the cross on a tag to remove that date.
8. Click **Create** (mark 6).

![The Define Working Calendar form. Marks 1 to 5 are Name, Start Of Week, Weekly Off, Start-Time / End-Time and Non-Working Days. Mark 6 is Create.](../media/working-calendar-form.png)

Click **Back to List** to leave the form without saving.

## How to see the days off of a calendar

1. Open the **Working Calendars** list.
2. Click the arrow at the start of the row (the mark in the picture). A month calendar opens under the row.
3. The calendar marks the non-working days. Weekly off days are marked too.

![The Working Calendars list with one calendar opened to show its month. The mark is the arrow you clicked.](../media/working-calendar-expanded.png)

## How to edit or delete a working calendar

1. Click the three dots at the end of the row.
2. Click **Edit** to open the same form with the saved values. Change what you need and click **Save**.
3. Click **Delete** to remove the calendar. A box with the title **Confirm Action** asks you to confirm. Click **Confirm**.

![The Working Calendars list. Mark 1 is Add Calendar. Mark 2 is Import Calendar. Mark 3 is the search box.](../media/working-calendar-list.png)

## How to import a calendar from a file

Use this when your planner keeps the calendar in a scheduling file.

1. Click **Import Calendar** (mark 2 in the list picture) on the list page.
2. Click **Select file** (mark 1 in the import picture) and choose the file. The page accepts only .xlsx, .mpp and .xer files, up to 75 MB.
3. Click **Process** (mark 2). Superwise reads the calendars in the file.
4. Choose one in **Select Calendar**. If the file holds one calendar, it is chosen for you.
5. Type the new calendar name in **Name**.
6. Click **Import**.

![The Import Working Calendar page. Mark 1 is Select file. Mark 2 is Process.](../media/working-calendar-import.png)

## What the columns mean

| Name | What it means |
| --- | --- |
| **NAME** | The calendar name. |
| **START OF WEEK** | The first day of the week for this calendar. |
| **WEEKLY OFF** | The days that are off every week. A dash means none. |

## Rules to know

- A calendar name cannot repeat. When you import a calendar with a name that exists, the system shows **Name cannot be repeated for the working calendar**.
- The start of the week cannot also be a weekly off. The system shows **Start of week cannot be a weekly off**.
- You cannot delete a calendar that a project uses. The system shows **This Working calendar is associated with Project(s).** Choose another calendar for those projects first.

## If something goes wrong

| What you see | What to do |
| --- | --- |
| **The Name field is required.** | Type a name. |
| **Name cannot be repeated for the working calendar** | Type a different name. |
| **The Start Of Week field is required.** | Choose a day in **Start Of Week**. |
| **Start of week cannot be a weekly off** | Remove that day from **Weekly Off**, or choose another start day. |
| **This Working calendar is associated with Project(s).** | Change the calendar on those projects, then delete again. |
| **Please upload .xlsx, .mpp or .xer files only** | Choose a file of one of these types. |
| **The file could not be read. Upload a Microsoft Project (.mpp) or Primavera (.xer) file.** | Check that the file is a valid scheduling file of one of these kinds. |

## Related pages

- [Templates](templates.md): the task plans that use the calendar dates.
- [Planning masters](index.md): the order to set up the planning lists.