Business days are calculated as Monday-Friday and do not account for public holidays.
Pick two dates to compare
You will instantly see calendar days, business days, weekend days, and a simple breakdown in weeks, months, and years.
Date difference calculator and countdown tool
Use this calculator to find how many days are between two dates, calculate an exact time difference, or run a countdown to an event. It is useful for vacations, deadlines, projects, age, business trips, schedules, and personal planning.
When it is useful
- Count days until a vacation or business trip
- Check project, task, or contract deadlines
- Calculate age or time since a specific event
- Run a countdown to an important date
- Track deadlines and intermediate milestones
How to use it
- Choose a mode: date difference, date and time, or countdown
- Enter dates manually or use quick buttons
- The calculator will show days, weeks, months, years, or exact time automatically
FAQ
How do I calculate days between two dates online?
Choose the start date and end date, and the calculator will automatically show the difference in days, weeks, months, and years.
Can I use this as a countdown calculator?
Yes. In countdown mode, choose the event date and time to see days, hours, minutes, and seconds remaining.
Does the calculator account for leap years?
Yes. The calculation uses calendar-aware date logic, including leap years.
What is this tool most useful for?
It is useful for vacations, deadlines, age, project timing, business trips, events, and personal planning.