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Business-Day Range Splitter

Divide the working days within a date range into equal segments, useful for splitting a project's working time into phases.

Only need one split point? See Business-Day Midpoint Calculator.

Worked example

Five business days split into 2 segments gives 3 days and 2 days, since the count does not divide evenly and the earlier segment absorbs the extra day, counting actual working days rather than calendar days. Split that same five-day range into 3 segments instead, and the result comes back as 2 days, 2 days, and 1 day, the leftover distributed to the earliest segments first rather than the last one.

Common mistakes

  • Assuming the segments always come out equal in length. A count that does not divide evenly by the number of segments necessarily produces some segments longer than others.
  • Counting calendar days instead of actual working days when checking the split by hand. Weekends and any entered exclusions do not count toward any segment's length.

Limitations

This checks the selected workweek only, with no holiday preset applied automatically. A specific date needing exclusion should be added separately rather than assumed.

Frequently asked questions

What happens if there are not enough business days for the requested segments?
The calculator states that plainly rather than returning empty or fractional segments that would be misleading to act on.
How does an uneven split get distributed across segments?
Any leftover days from a count that does not divide evenly are added to the earlier segments first, so the earliest phases absorb the extra day rather than the latest ones.