Add Business Days
Add working business days to a date.
📆 Add Business Days
What is Add Business Days Calculator?
The Add Business Days calculator computes a due date after adding a number of working days (Monday-Friday) to a starting date. Unlike a regular date calculator that counts calendar days, this tool automatically skips Saturdays and Sundays. For example, adding 5 business days to a Monday results in the following Monday - not Saturday. This is essential for project planning, contract SLAs, and shipping deadlines.
How Does It Work?
The algorithm works by iterating day by day from the starting date. Every time the date advances by one day, the tool checks whether that day is a Saturday (getDay() === 6) or a Sunday (getDay() === 0). If so, that day is skipped without being counted. The process continues until the requested number of business days is reached. Note that this tool does not account for national holidays - only weekends.
Common Use Cases
- SLAs & business contracts - Calculate completion dates based on working days rather than calendar days, in line with SLA standards.
- Project management - Estimate sprint or milestone duration while excluding weekends.
- HR & payroll - Calculate payroll dates, leave, or onboarding processes that only run on working days.
- Logistics & shipping - Estimate delivery times that are only counted on business days.
- Banking & finance - Interbank transaction settlement dates are usually calculated only on business days.
Frequently Asked Questions
Q: Does this tool account for national holidays?
A: No. This tool only skips Saturdays and Sundays. National holidays such as Eid al-Fitr or Christmas are not automatically skipped since they differ across countries and companies.
Q: What if the start date falls on a weekend?
A: The tool will start counting from that start date. If the start date is a Saturday, the first day counted will be the following Monday (since Saturday-Sunday are skipped).
Q: What is a business day?
A: A business day is a day on which a company or institution operates normally, usually Monday through Friday. In some countries, working days can differ (for example, the UAE, which has Saturday-Sunday off).