Which statement best defines a business day for time-window calculations?

• A. Calendar day equals 24 hours; business day excludes weekends/holidays per organizational policy.
• B. Calendar day equals 48 hours; business day equals 24 hours.
• C. Business day equals 24 hours; calendar day excludes weekends/holidays.
• D. Business day and calendar day are identical.

Answer: (A)

In time-window calculations, a calendar day is a 24-hour period that runs from midnight to the next midnight, and a business day is a working day defined by the organization, typically excluding weekends and holidays.

This best answer states that a calendar day equals 24 hours and that a business day excludes weekends and holidays per organizational policy. That aligns with how deadlines are often measured: every 24-hour calendar day counts, but when a requirement calls for business days, only the days when operations are open are counted, skipping weekends and holidays.

Why the other ideas don’t fit: a calendar day is not 48 hours, so that option is incorrect. a business day is not universally fixed at 24 hours; it is based on actual working days, which usually means it can exclude weekends and holidays. finally, business days are not identical to calendar days because non-working days are typically omitted in business-day counts.