A construction schedule that counts like a builder.

Working days, holidays and Saturdays

Durations and lags are in working days, as in MS Project. Slovenian public holidays are built in (including Easter and Whit Sunday, calculated for each year). Saturday is a working day by default and can be switched off per project; Sunday is never a working day.

A date that falls on a non-working day moves automatically: a start to the next working day, a fixed finish to the previous one.

Dependencies, deadlines and milestones

A schedule is logic, not a list of dates. Every activity has predecessors and constraints from which its dates are calculated:

• finish-to-start (FS), start-to-start (SS) and finish-to-finish (FF) links with a lag in working days, negative too;
• "📌 Start no earlier than" — the activity cannot start before the date, but dependencies can push it later;
• "🎯 Fixed finish" — a contractual deadline; only the owner sets it, and an overrun is flagged ⚠ at once;
• milestones (zero duration), phases and work types with colours.

Critical path, float and schedule health

ConaPlan calculates total float for every activity. Activities with a float of zero or less are critical; switch on the critical path in the Gantt chart to see them and the links that drive the project finish.

Schedule health runs nine checks every good schedule respects: activities without predecessor or successor, negative and very long lags, start constraints that hide logic, unreachable fixed finishes, very long activities, unlinked milestones and double-booked crews. Click a finding to open the activity.

Plan, actuals and forecast

The plan and the actual progress are kept apart. Actual starts, finishes and percentages arrive from site as dated entries; an entry from the field is a proposal until a manager confirms it.

The "Plan | Forecast" switch shows when the project will really finish if work continues at the current pace: finished activities sit on their actual dates, the remaining work is counted from today. The forecast is never written into the plan — the plan only changes when you decide.

Versions, baseline and change proposals

Save any important state of the schedule as a version; one of them is the baseline. The "Difference +/−" view shows what changed between any two versions and how far the finish moved.

Managers edit the plan directly or draft a change proposal with a reason; the owner approves or rejects it. Every activity has a history of who changed what and when.

Crews and the three-week lookahead

Assign activities to crews with availability; ConaPlan warns when the same crew is booked in two places at once. The three-week lookahead lists the work by crew for the coming three weeks, with overdue activities on top — on screen and as a PDF for the coordination meeting.