GlobeTime / Date and business day calculator

Date and business day calculator

Count calendar and business days, add or subtract dates, and see the ISO week. Choose your own weekend and days off; no holiday data is assumed.

Compare dates

Start date End date

Include both dates

Without this option, the start date is excluded and the end date is included. A reversed range has a negative result. These are calendar dates, not elapsed 24-hour periods.

Add or subtract from the start date

Amount (use a minus sign to subtract) Unit

The start date is day zero. Months and years clamp to the last valid day when needed; adding one month to January 31 gives February 28 or 29.

Work calendar

Other days off (YYYY-MM-DD, separated by commas or lines)

Your choices only. Official holidays and regional rules are not loaded. A listed day off already excluded by the weekly pattern is counted once.

Results

Choose the dates and your work calendar, then calculate.