The Change Working Time dialog is used to change the working time in project calendar. It appears on clicking the Change Working Time button on the toolbar.

The Change Working Time dialog provides options as follows:

Option	Purpose
For calendar	Specify the calendar you wish to select.
Add New Calendar	Create a new calendar or a copy of a calendar based on default or custom calendar.
Manage Custom Calendars	Add or remove custom calendar.

The following image shows the Change Working Time dialog:

The Change Working Time dialog displays three tabs, namely Calendars, Work Weeks, Exceptions.

Calendar Tab

The Calendars tab displays a calendar where you can click a day to view the working time based on the work week, and check whether or not to honor default calendar exceptions.

The following image shows the Calendar tab:

Work Weeks Tab

The Work Weeks tab provides option to change the default work week for project calendar, resource calendar, or for any custom calendar that you create. You can also choose or create additional schedule for a range of days that differ from the default work day.

The following image shows the Work Weeks tab:

The Work Week tab provides various options as follows:

Option	Description
Select day(s)	Selects one or more days that constitute a work week.
Name	Specifies a name for a working week.
Start Date	Specifies the Start date for a working week.
Finish Date	Specifies the Finish date for a working week.

Once you select the day(s) you want to change from a working day to non-working day or vice versa, you can choose one of the following:

• Use default working times for these days - to specify the default working times, that is 8:00 am - 12:00 am and 1:00 pm - 5:00 pm, on selected days in the work week.
• Set days to nonworking time - to select nonworking day(s).
• Set days to these specific working times - to set the working times for the selected days throughout the schedule. Type the time when you wish the work to start in the From box and the time you want the work to end in the To box.

Exceptions Tab

The Exceptions tab provides you the option to add exceptions in the calendar such as marking public holidays or vacation. The following image shows how this tab appears at runtime:

The Exception tab provides options as follows:

Option	Description
Start date	Shows a drop-down menu with a calendar to select the start date of exception.
End by	Shows a drop-down menu with a calendar to select the end date of exception.
Recurrence Pattern	Shows a button to set a repeat on an exception throughout the schedule. Clicking this button opens Recurrence Pattern dialog that lets you specify the days on which recurrence appear. Any task scheduled around an exception automatically gets rescheduled.

The following image shows how the Recurrence Pattern dialog appears at runtime: