Group Dates & Durations

When viewing your Gantt, Aphex automatically calculates a Start Date, End Date, and Duration for Folders, Packages, and Parent Tasks.

These values summarise when grouped work begins and ends and how long it spans, which is helpful for reporting, filtering, and printing.

This doc explains how those values are calculated, how your View settings affect them, and how they behave in printing and published plans.

Start & End Dates and Duration

Start & End Dates

Duration

These values reflect the first and last visible Tasks within each Folder, Package, or Parent Task.

Displayed For:

• Folders

• Packages

• Parent Tasks (Tasks with subtasks)

How they’re calculated:

• Start Date = Start date of the earliest visible Task

• End Date = End date of the latest visible Task

These values update automatically when filters or date range settings are applied.

The Duration shows the number of working days between the group’s Start and End Dates.

Displayed For:

• Folders

• Packages

• Parent Tasks

How it’s calculated:

• Spans the Start → End Date of the group

• Uses your selected Group Duration Calendar

• Measured in working days, not calendar days

Group Duration Calendar

You can control how durations are calculated by choosing which working calendar to apply to grouped durations.

To change your Group Duration Calendar:

1. Click View Options

2. Select Group Duration Calendar

3. Choose one of:

   • Project Default — Respects your Project’s non-working day exceptions

   • 5 Day Week (Mon–Fri) — Static calendar

   • 7 Day Week (Mon–Sun) — Static calendar

This setting only affects how Durations are displayed for Folders, Packages, and Parent Tasks. It doesn’t change individual Task calendars or impact other users.

Filters & Adjusted Values

When filters or date ranges are applied, Start, End, and Duration values update to reflect only what’s visible in your current View.

Common cases:

• Filtering by Subcontractor, Location, Labour, Tags, etc

• Zooming to a specific date range

• Hiding Packages or Folders

What you’ll see:

• A small filtered icon appears beside any adjusted group value

• Hover over the icon to see both:

  • The Filtered value (based on the current View)

  • The Total value (with no filters)

Group Dates & Durations in Printing

You can choose how the group Start, End, and Duration values are displayed when printing your Gantt.

To configure:

1. Click View Options

2. Select Print View

3. Open Advanced Settings

4. Under Group Dates & Durations, select:

   • Filtered — Show values based only on visible Tasks

   • Total — Show values from all Tasks in the group

Group Durations in Published Versions

When a plan is published, Group Durations are always calculated using a 5 day workweek (Monday–Friday).

Any personal calendar settings or Project non-working day exceptions are ignored. This ensures consistency for everyone viewing the published plan.