Schedule in Hours Instead of Days - Nextedy Documentation

Prerequisites

Gantt version 4.0.0 or newer
Access to widget parameter editing on your Gantt page

Set Duration Precision to High

Open the page containing your Gantt chart in edit mode.
Open Widget Properties > Data Mapping > Duration Precision.
Change the value from Standard (Days) to High (Hours).

After this change, the Gantt manages durations as fractions of hours instead of whole days.

Set the Time Scale to Hours

When working with high duration precision, you should set the default scale to display hours:

In Widget Properties > Scale, select H (hours).
Save the widget properties.

The Gantt chart header now displays individual hours, giving you visibility into sub-day task placement.

Enable Working Time

High-precision scheduling requires working time awareness so the Gantt correctly accounts for working hours in duration calculations:

In Widget Properties > Advanced > Working Time, set the value to YES.

This ensures the Gantt skips non-working hours when computing task durations.

Verify Field Types

Review your field configuration to ensure compatibility with hour-precision mode:

Field	Recommended Type	Notes
Duration Field	Duration (`initialEstimate`) or Float	Value now represents hours, not days
Start/End Date Fields	DateTime (not Date)	Required for sub-day precision

If your duration field points to an Integer, Float, or String field, existing values are reinterpreted as hours after switching precision. For example, a stored value of 8 previously meant 8 days but now means 8 hours (1 working day).

If your start/end date fields currently use a custom field of type Date, change them to DateTime to capture hour-level precision. Plain Date fields only store day-level values and cannot represent specific hours.

Configuration Summary

Widget Parameter	Value	Location
Duration Precision	High (Hours)	Widget Properties > Data Mapping
Scale	H	Widget Properties > Scale
Working Time	YES	Widget Properties > Advanced

Impact on Resource View

When you enable high-precision scheduling, the resource view calculates load at the hour level. You can customize working hours per resource using the workingHoursPerDay property in Administration > Configuration Properties or via the Gantt Config Script:

gantt.config.workingHoursPerDay = 7;

For per-resource working hours, define a custom function in Widget Properties > Advanced > Gantt Config Script:

gantt.config.workingHoursPerDayFunction = (resource) => {
  if (resource === "rProject") {
    return 4;
  }
  return 8;
};

For the most accurate resource load calculations in hour mode, enable working calendars under Widget Properties > Working Calendars. This ensures the Gantt respects per-user availability, time off, and schedule tweaks when computing hour-level capacity.

Verification

You should now see:

Task durations displayed in hours (e.g., 4h instead of 1d)
The Gantt chart header showing hourly intervals
Task bars snapping to hour-level positions when dragged
Resource view displaying hourly capacity and load values

​Prerequisites

​Configuration Summary

​Impact on Resource View

​Verification

​See Also

Prerequisites

Configuration Summary

Impact on Resource View

Verification

See Also