Working Days Calculator
Count working days between two dates. Weekends are always excluded; you can optionally exclude US federal holidays from the sample list.
Choose a start and end date to count working days.
How it works
Working days are counted on the UTC calendar from the start date through the end date, inclusive. Saturdays and Sundays are skipped. When you enable the holiday option, dates in our US federal holiday dataset (2024–2026) are also excluded.
Use this for project timelines, staffing plans, and delivery estimates that follow a Monday–Friday week. For the same logic under the name "business days," see the Business Days Calculator. For all calendar days, use Days Between Dates.