See the idea
Choose the question before the calculator
A calendar span and a working-day count answer different questions. A Saturday-to-Sunday trip includes weekend dates; a work deadline may exclude them. The same endpoints can therefore give different, valid totals.
| Your question | Start here |
|---|---|
| How long is the span between two dates? | Date range |
| How many of these dates are working days? | Business days |
| How much leave would a break use? | PTO Optimizer |
Make the boundaries explicit
Date range shows “days apart” as the elapsed distance and “Counting both ends” as a separate inclusive breakdown. The same start and end date is zero days apart but still one calendar date.
Business days uses Monday–Friday. Its between-dates count includes both endpoints when they are workdays. The Skip OPM federal holidays checkbox excludes covered federal holidays; it does not offer a custom workweek or an endpoint toggle.
- Enter the start and end dates.
- For a span, compare days apart with Counting both ends in Date range.
- For workdays, choose between dates or N workdays before / after Start.
- Choose whether to skip OPM federal holidays and inspect the explanation.
Use the count with the right rule
A contractual, legal, banking, or delivery deadline may use a special definition of business days. DateXLife does not determine that rule for you. Match the settings to the rule you have been given and confirm important deadlines with the responsible party.
Date range is also useful as a cross-check when a PTO window looks longer than expected: count the dates in the whole break, then separate the working days from the days that were already free.
Questions, answered
Why do two day counters disagree by one?
Check whether they include the start date, the end date, or both. Endpoint conventions often explain a one-day difference.
Where is the simple date-span tool?
Open Date range for the span and weekday/weekend breakdown. Business days adds your workweek and selected holiday rules.
Scope & reference
Written for the current DateXLife controls and calculation rules. Illustrations explain the idea; your result depends on your inputs and the available data. Recheck important dates before booking.
Calculation methodology · Report an issue
Open the Date range tool to check a simple date span.