Hours worked between two date-times, skipping weekends and off-hours.
Each weekday between the start and end contributes its working window, trimmed on the first and last partial days, with weekends excluded. Deadline math should measure productive working hours, not the raw calendar span that includes nights and weekends.
Business Hours Elapsed
Business hours = accrue only weekdays, clipped to the open-close window on the first and last day
Business hours = accrue only weekdays, clipped to the open-close window on the first and last day Each weekday between the start and end contributes its working window, trimmed on the first and last partial days, with weekends excluded.
Deadline math should measure productive working hours, not the raw calendar span that includes nights and weekends.
This calculator takes 12 inputs: Start year, Start month, Start day, Start hour, Start minute, End year, End month, End day, End hour, End minute, Business opens, Business closes. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.