Days BetweenDates Calculator
Count the exact number of days between any two dates with this free Days Between Dates Calculator. One result gives you total days, business days, weekends and complete weeks.
Count Days Between Two Dates
Choose two dates to see exactly how many days separate them.
How Days Between Dates Works
Four steps to count days between two dates.
Enter From Date
Choose the start date — the first day of the period you're counting.
Enter To Date
Choose the end date, or press "To = Today" to count up to the current date.
Calculate
Press "Count Days" to get the exact difference in calendar and business days.
View Breakdown
Read off total days, business days, weekends, weeks, hours and an approximate month count.
What Is a Days Between Dates Calculator?
A quick look at day counting between dates.
Day counting explained
A Days Between Dates Calculator returns the exact number of calendar days separating two dates. It takes the earlier date from the later one while allowing for month lengths, leap years and year boundaries.
Rather than a years-months-days breakdown, you get one total day count — the number you need for deadlines, comparisons and age in days.
Business vs calendar days
Calendar days count every day; business days leave out Saturdays and Sundays. A 30-calendar-day stretch usually holds 21 or 22 business days, which is why shipping estimates, bank processing and many legal deadlines are quoted in business days.
Inclusive vs exclusive counting
January 1 to January 3 is 2 days counted exclusively (the number of midnights in between). Count both dates and it becomes 3 days inclusive. Exclusive counting is the more common convention.
When to Count Days Between Dates
Everyday reasons to count days precisely.
Shipping Tracking
Count transit days from dispatch to delivery and compare them with the promised window.
Medical Records
Note the days since surgery, the start of treatment or the first symptoms — clinicians often need exact day counts.
Legal Deadlines
Work out statute of limitations periods, filing deadlines and response windows precisely.
Interest Calculations
Daily interest on loans and savings depends on an exact count of days in the period.
Academic Planning
See how many days remain until graduation, an exam or the end of term, and plan revision around them.
Fitness Goals
Follow training streaks, days since you started a programme, or days left to a goal.
Days Between Dates Examples
Three common day count examples.
New Year to midsummer
Jan 1 → Jun 23 is 173 days — about 47.4% of a 365-day year.
Quarter length
Jan 1 → Mar 31 is 89 days, or 90 in a leap year: one standard fiscal quarter.
Full year
Jan 1 → Dec 31 is 364 days counted exclusively; include both dates and you get 365.
Days Between Dates FAQ
Answers to common questions about Days Between Dates.
Pick a start date and an end date. You immediately get the number of calendar days between them, broken down into business days, weekend days and complete weeks.
The count is exclusive by default, meaning it equals the number of midnights between the two dates. For an inclusive count that includes both the first and last day, add 1.
Business days are the weekdays Monday to Friday. Public holidays are not removed because they differ between countries and regions — subtract any that apply to you.
Yes. The dates can be in the past, the future, or one of each, and the order doesn't matter: the result is always the number of days between them.
It follows the Gregorian calendar exactly, so leap years, months of different lengths and year boundaries are all counted correctly.
Yes. It is free and needs no account. The dates are processed in your browser and are never stored or sent anywhere.
A 365-day year usually has 261 weekdays (Monday to Friday) and 104 weekend days; depending on which day it starts on, the figure can be 260 or 262. Enter January 1 and December 31 of a year to see its exact split.