How it works

The calculator counts dates across a half-open interval: from the start date up to, but not including, the end date. This matches standard date subtraction and makes the result reproducible.

Calendar days

Calendar days are simple date differences. Weekends and holidays are included.

Working days

Working days exclude Saturdays and Sundays. Depending on the selected calendar, the tool also excludes holidays.

• Holiday-aware country mode: common national or widely observed public holidays for the United States, India, United Kingdom, Canada, Australia, Germany, France, Japan, and Singapore.
• Weekday-only mode: countries without an included holiday calendar still receive a useful Monday–Friday estimate, clearly labeled in the result.
• Country comparison: each selected country is calculated independently, so a holiday in one country can explain a difference in the two results.

Why results may differ from your company calendar

Companies may observe different days off, floating holidays, regional holidays, religious holidays, or local state holidays. For exact HR, payroll, legal, or SLA calculations, confirm against the official calendar for the relevant organization and jurisdiction.