Setting up a calendar

Summary: Create a calendar that defines an organisation's working hours and non-working days, so that projects, resources and skills can be scheduled against it.

Applies to

Property	Value
Product	LYNX-X
Version	28.10.9809.0
Required permissions	Space administrator (unverified)
Last updated	2026-09-03
Owner	Support

Before you start

Decide what the organisation's standard working hours are, and which days of the week are not worked.
Know whether any group of resources needs different hours from the rest, for example a part-time team, or a site in another time zone. Each of those needs its own calendar.

Procedure

Open Configuration, then select Calendars.
Select New to create a calendar.
Enter the calendar's name in Description.
Under Calendar rules, select the + to add a rule.
Add a working-hours rule: the hours a normal working day runs from and to.
Add a rule for each non-working day: a weekday that is never worked, or a specific date such as a public holiday.

Expected outcome

The month grid shows the result of the rules: the hours available on each working day, and 0:00 in red on days the rules exclude.

The rules themselves are listed below the grid, each written as a sentence, for example Resources are normally working between 9:00 and 17:00 or Resources are not working on Saturday. Select the pencil beside any rule to change it.

The Calendars screen

A calendar does nothing on its own until it is assigned. See Assigning calendars to resources, skills and projects.

Additional information

Note
Working hours and non-working days are the same kind of thing in LYNX-X: both are calendar rules. There is no separate working-hours grid to fill in. You add a rule for the hours, and a rule for each exception that applies to everyone on the calendar, such as a public holiday.

An absence that belongs to one person, such as leave or a training day, does not go in the calendar. Set it on that resource instead, so the rest of the calendar's users are not affected. See Setting a resource's non-availability period.

Tip
A calendar is reused everywhere it is assigned, so create one calendar per working pattern (standard hours, part-time, a specific site), not one per resource. The Configuration screen shows how many calendars a space already has before you add another.

Troubleshooting

Problem	Resolution
The grid still shows hours on a day that should be non-working.	Check the rules list below the grid. A non-working day needs its own rule; changing the working-hours rule does not exclude a day.
A rule is listed but the grid has not changed.	Select Save in the left rail. It stays greyed out until there is an unsaved change.

Revision history

Version	Date	Author	Changes
1.0	2026-09-01	Support	New article.
1.1	2026-10-30	Support	Notes that one person's absence is set on the resource, not in the calendar.

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