2. Financial entities shall measure the service downtime of an incident as referred to in Article 18(1), point (b), of Regulation (EU) 2022/2554, from the moment the service is fully or partially unavailable to clients, financial counterparts or other internal or external users to the moment when regular activities or operations have been restored to the level of service that was provided prior to the incident. Where the service downtime causes a delay in the provision of service after regular activities or operations have been restored, the downtime shall be measured from the start of the incident to the moment when that delayed service is fully provided.
Where financial entities are unable to determine the moment when the service downtime started, they shall measure the service downtime from the moment it was detected.