How workday calculator works
A workday calculator counts the business days between two dates — the days a office or project is actually open — by walking the calendar day by day and skipping weekends and any holidays you list. Unlike a simple date difference, it knows that Saturday and Sunday are not working days and that a public holiday on a weekday still counts as closed.
Enter a start and end date and choose the weekend convention that matches your region: Saturday–Sunday (most of the world), Friday–Saturday (much of the Middle East) or Sunday only. Add holidays as specific dates (2026-12-25) or as recurring annual dates (12-25) that repeat every year. You can choose whether to include the end date itself in the count.
The result shows the total calendar days in the range, the number of business days, and a breakdown of how many weekends and holidays were excluded. Everything runs in your browser; no dates are uploaded.