React Gantt Chart - Project Calendar

Align Project Schedules with Working Calendars

Project calendars define working days, holidays, and daily working hours for project planning. Timeline markers provide key schedule references, while custom workweek settings ensure task dates and durations align with the team’s actual working schedule.

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React Gantt Chart project calendar work week planning view

Configure project workweek

Define a custom workweek that determines when project work can occur. Schedules stay aligned with the team’s actual working pattern. Use this option when projects follow a nonstandard workweek.

Regional projects with different workweeks
Weekend maintenance project schedules
Construction projects with a six-day workweek
Retail projects with weekday closures

Manage project holidays

Holiday calendars mark specific dates as non-working so schedules skip them. This helps maintain realistic planning timelines. Use this option when projects must account for holidays or planned shutdown periods.

Projects spanning public holidays
Payroll schedules around bank holidays
Construction projects during seasonal closures
Global projects across holiday calendars

React Gantt Chart project calendar holiday planning view

React Gantt Chart project calendar daily working hours configuration

Set daily working hours

Working hours define the available time within each working day. This improves the accuracy of duration and end-date calculations. Use this option when projects follow specific working hours or shift patterns.

Part-time team project schedules
Manufacturing projects across rotating shifts
Customer support across shift hours
Projects with shortened workdays

Display timeline markers

Timeline markers highlight important dates on the project schedule. This improves visibility without affecting task calculations. Use this option when key project events need continuous visibility.

Product release date tracking
Contract deadline visibility
Scheduled project review checkpoints
Regulatory submission date tracking

React Gantt Chart project calendar timeline marker display

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Frequently Asked Questions

✅ What do timeline markers display in React Gantt Chart?

Timeline markers display important project dates such as milestones, deadlines, reviews, and release dates. They improve timeline visibility without changing task scheduling or dependencies.

✅ What is the React Gantt Chart project calendar?

The React Gantt Chart project calendar defines working days, holidays, daily working hours, and timeline markers for a project. This helps schedules reflect actual working calendars instead of treating every calendar day as available.

✅ How do working hours affect project scheduling in React Gantt Chart?

Working hours define the available working time within each working day. The React Gantt Chart uses these settings to calculate task durations and end dates, so a task’s length reflects working time rather than elapsed time.

✅ Can React Gantt Chart schedule weekend work?

Yes. Weekend days can be configured as working days when projects follow a non-standard work week, allowing schedules to match different organizational calendars.

✅ What happens to tasks scheduled on non-working days in React Gantt Chart?

Non-working days are excluded from task scheduling. Work resumes on the next working day, and end dates adjust to account for the skipped time, keeping project timelines accurate.

✅ How does the React Gantt Chart manage holidays and work weeks?

The React Gantt Chart provides calendar settings that mark specific dates as holidays and specific weekdays as non-working. Duration and date calculations skip these days, keeping schedules aligned with the configured working calendar.

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