Extension of Time (EOT) Claims

An Extension of Time adjusts the completion date to reflect delay the Contractor is entitled to more time for. The gap between days claimed and days awarded is usually a gap in discipline, not entitlement — which is where a rigorous approach earns its keep.

What EOT entitlement rests on

Entitlement is not a single number; it is the sum of individual delay events, each established on its own basis:

• a valid contractual mechanism and timely notice;
• a delay event that is the Employer’s risk under the contract;
• a cause-and-effect link traced to the critical path of the programme current at the time;
• honest treatment of any concurrent delay;
• assessment against the baseline, updated programmes and as-built records.

Method

The technique is matched to the timing and records — typically Time Impact Analysis for prospective assessment, or windows and as-built methods retrospectively (see delay analysis for the methods in full). Each event is modelled, not asserted, and its effect on completion demonstrated rather than claimed.

Mitigation, acceleration and risk allocation

Reasonable mitigation is expected and assessed distinctly from acceleration — the cost of buying time back. Underpinning all of it is the contract’s allocation of risk between Employer and Contractor, which decides not just how much time is due but who pays for it.

Assessment that holds

Whether preparing or reviewing, the test is the same: would this survive independent scrutiny? On a major Abu Dhabi infrastructure programme, a 291-day claim was assessed to an approved 64 days — a figure that sat between the Engineer’s 66 and an independent specialist’s 60, and stood because every day was traceable. The reviewer’s discipline is set out in how to assess an EOT claim; broader claims strategy in construction claims.

This describes professional project-controls and claims practice; it is not legal advice.