An extension of time is not granted because the project is late. It is granted because a specific event, for which the other party bears risk, moved the critical path — and the record proves it.
Prompt payment and interim adjudication changed the tempo of construction disputes in Ontario. The analysis has to be ready when the clock starts, not after.
Once the time is established, the cost has to be built from the accounting record. Formula-based head office claims are where most quantum submissions lose credibility.
Most delay analyses fail at the as-built stage. Rebuilding what actually happened, from daily records rather than from updated programmes, is the work that decides the outcome.