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A business days calculator counts the number of working days (Monday through Friday) between two dates, or adds a set number of business days to a starting date — skipping weekends automatically. It's a common check for shipping estimates, project deadlines, and contract terms that specifically reference business days rather than calendar days.
Calendar days and business days are easy to mix up, and getting it wrong can throw off delivery estimates or deadline planning. This tool exists to handle the weekend-skipping math automatically so you don't miscalculate a deadline that specifically excludes Saturdays and Sundays.
The calculator counts through each calendar day between the start and target, skipping any day that falls on a Saturday or Sunday, so only Monday-through-Friday days count toward the total. For example, 10 business days added to a Monday lands two full weekends later — not simply 10 calendar days forward — which is exactly the kind of gap that trips people up when estimating shipping or deadline dates manually.
Typically Monday through Friday, excluding weekends. Some versions also exclude public holidays, though this calculator focuses on weekday counting.
A regular date calculator counts every calendar day including weekends, while this one specifically skips Saturdays and Sundays.
Yes, it's commonly used exactly for that — many carriers quote delivery times in business days, and this tool helps you find the actual calendar delivery date.
This version calculates based on weekdays only; holiday exclusions would need to be manually adjusted for depending on your region and calendar.
Typically you'd use the difference mode between two dates for that; the add feature is generally designed for counting forward from a starting date.