Date & Time Calculators
Workday Calculator
Count an inclusive Monday-Friday civil-date range; Saturdays and Sundays are excluded, but public holidays are not.
Enter the values and review the result.
Enter both civil dates to count Monday-through-Friday dates.
Quick answers
What this calculator answers
- Range policy: Both selected civil dates are included when evaluating the range.
- Workday model: Monday through Friday count; Saturday and Sunday do not.
- Holiday limit: Public holidays and organization closures are not excluded.
- Calendar model: 1000-01-01 through 9999-12-31 in the proleptic Gregorian calendar.
Transparency note
Accuracy and limitations
Calzivo tools are built for practical estimates, conversions, and checks. Some tools use standard formulas or simplified assumptions, and results can be affected by input accuracy, rounding, units, local rules, or changing official requirements.
Results depend on the values you enter and any simplified assumptions used by the tool. Verify important results before making decisions or submitting official information.
Reference check
Sources and references
These references provide background context for the topic. They do not replace official advice or documents for personal decisions.
- ISO 8601 date and time format overview
International Organization for Standardization
How to Use This Tool
Use these steps to enter the right inputs and interpret the result correctly.
Enter a start civil date and an end civil date in the supported range.
Keep the end date the same as or later than the start date.
Read the inclusive Monday-Friday count alongside weekend and total calendar days.
Related Tools
These tools separately handle calendar components, total civil days, clock intervals, abstract durations, time-zone conversion, or age-specific calculations.
Date Difference Calculator
Find genuine calendar years, months, and days plus exact end-exclusive civil days.
Days Between Dates Calculator
Count civil days with an explicit exclusive or inclusive mode and no time-zone arithmetic.
Hours Calculator
Find a nominal start-to-end clock interval with an optional whole-minute break and overnight inference.
Time Calculator
Add or subtract hours, minutes, and seconds as abstract durations beyond 24 hours.
Time Zone Converter
Convert a civil date and 24-hour time between fixed UTC offsets in 15-minute steps, including date rollover without automatic DST.
Age Calculator
Calculate calendar age between two entered dates with leap-day handling and total days.
Related Guides
Background reading and explanations related to Workday Calculator.
Frequently Asked Questions
Common questions about Workday Calculator and how to read the result.
Are both selected dates included?
Yes. Each endpoint belongs to the range and contributes one workday when it falls from Monday through Friday.
Are public holidays excluded?
No. This simplified model excludes only Saturday and Sunday. Public holidays, organization closures, and jurisdiction-specific rules are not included.
What happens when both dates are the same?
A Monday-through-Friday date returns 1 workday. A Saturday or Sunday returns 0 workdays and 1 weekend day.
Can the end date come first?
No. Reverse ranges are rejected rather than swapped, converted to absolute values, or returned as negative counts.
Do time zones or daylight saving time affect the result?
No. Inputs are civil calendar dates. Time of day, local midnight, UTC offsets, time zones, and daylight-saving transitions are outside the calculation.
Which related date tool should I use?
Use Date Difference for calendar components, Days Between Dates for inclusive or exclusive calendar-day totals, Hours Calculator for clock intervals, and Time Calculator for abstract durations.