Days Between Dates Calculator
Calculate the exact number of days between any two dates
Date Range Calculator
Results
About Days Between Dates Calculator
The Days Between Dates Calculator is a powerful tool that helps you find the exact time span between any two dates. Whether you're counting down to an important event, calculating a project timeline, or determining age, this calculator provides accurate results in multiple time units.
Multiple Time Units
Get results in days, weeks, months, and years to suit your needs.
Business Days
See how many weekdays are in your selected date range for business planning.
Customizable
Choose whether to include or exclude the end date in your calculations.
Instant Results
Get real-time calculations as you change dates with no need to click calculate.
How to Use
Select Start Date
Choose the first date of your date range using the date picker.
Select End Date
Choose the second date of your date range using the date picker.
Choose Settings
Decide whether to include the end date in the calculation by toggling the switch.
View Results
See the calculated days, weeks, months, and years between your selected dates instantly.
Frequently Asked Questions
Simply select your start date and end date using the date pickers above. The calculator will instantly show you the number of days between those dates. You can also toggle whether to include the end date in your calculation.
By default, yes, the calculator includes the end date in the calculation. This means if you select today and tomorrow, it will show 2 days. You can toggle this setting off if you prefer to exclude the end date from your calculation.
The calculator counts Monday through Friday as weekdays and Saturday and Sunday as weekend days. The "Weekdays Only" result shows how many Monday-Friday days are in your selected range, while "Weekends Only" shows the number of Saturday-Sunday days.
Our calculator is highly accurate and accounts for leap years, different month lengths, and other calendar nuances. The calculations are performed using JavaScript's Date object, which correctly handles all date-related calculations.
Yes! You can calculate the time between any two dates, regardless of whether they're in the past, present, or future. If the end date is before the start date, the calculator will still provide the correct number of days between them.
Common Use Cases
Project Management
Calculate project durations, sprint lengths, or time between milestones to better plan resources and deadlines.
Education
Find days remaining until exams, assignment deadlines, or school events to manage study schedules effectively.
Travel Planning
Determine the length of trips or vacations to budget for accommodations, car rentals, and other travel expenses.
Event Planning
Calculate days until important events like weddings, conferences, or product launches for countdown purposes.
Historical Research
Determine exact time spans between historical events for academic research or general interest.