Which situation qualifies as a 'working day' excluded from the project schedule?

A 'working day' is typically defined as a day when construction activities can proceed as planned without significant interruptions. In this context, a day that falls on a holiday is considered a 'working day' excluded from the project schedule because most construction operations do not take place on holidays. Project stakeholders generally recognize holidays as non-working days, which effectively eliminates them from the count of productive workdays.

In contrast, routine maintenance days, reduced labor force presence, or scheduled training sessions may still allow for some level of work activity to occur. Routine maintenance could potentially be managed without halting other operations, while reduced staffing does not necessarily prevent work from being completed. Likewise, training sessions, though they may divert some workforce resources, can be structured to allow other construction activities to continue simultaneously.