Calculate the number of days between two dates, add or subtract days from a date, and count business days. Three calculators in one tool.
How to use this tool
Days Between Dates — pick a start and end date to find the exact number of days in between.
Add / Subtract Days — pick a date and add or subtract any number of days to find the resulting date.
Business Days — count working days only, skipping weekends. Useful for project deadlines and contracts.
All calculations account for leap years automatically. Results include weeks, months, hours, and minutes.
This tool is useful for project managers calculating sprint durations and deadlines, HR professionals computing notice periods and contract lengths, students counting days until exams or holidays, event planners timing countdowns, freelancers calculating invoice payment deadlines, and anyone who needs to quickly find the number of days between two dates or determine a future date.