Working Days Calculator
Count working days between two dates with a configurable workweek. Useful when a team does not follow a standard Monday-to-Friday schedule.
Continue with another calculation
Core Week Calculator
Convert dates to ISO weeks, turn week numbers into date ranges, calculate weeks between dates, add/subtract weeks and count from today.
Open →Planning Calculators
Plan deadlines, project timelines, payroll periods, work anniversaries and timesheet weeks.
Open →Week Calendar
Browse ISO weeks by year with Monday-to-Sunday ranges and highlighted current week.
Open →When to use this tool
Choose which weekdays count as workdays, then compare the working-day total with the full calendar range.
Practical uses
Count working days between two dates with a configurable workweek. Useful when a team does not follow a standard Monday-to-Friday schedule.
These planning tools are designed for quick answers, but they also work well as part of a bigger workflow. You can pair them with the year calendar, current week page and week guides to plan projects, delivery windows, payroll cycles, reporting periods and deadlines.
FAQ
Can I use Sunday to Thursday?
Yes. Select the working weekdays that match your schedule.
Why is this different from business days?
Business days usually assume Monday to Friday; working days lets you define the pattern.