Count calendar days, business days, weekends, and holidays between two dates. Use this day counter for deadlines, schedules, and date ranges where inclusive and exclusive counting both matter.
Select dates to see results
This day counter calculator between dates is built for the common question you face in real life: how many calendar days or business days are in a date range? You can use it for project plans, shipping windows, school terms, HR timelines, event planning, and legal review periods. The tool gives you the total date difference first, then shows how weekends and federal holidays affect the final counted total.
Pick the first date in your range. The calculator treats this start date as the anchor for the whole elapsed time calculation.
Select the final date. If your deadline lands on that last day, turn on the end-date option to count it as a full day.
Include or exclude weekend days and holidays depending on whether you need calendar days, workdays, or a holiday-aware schedule.
Review total days, counted days, weekdays, working days, weekends, and holidays so you can make the right scheduling decision.
Many date calculators look wrong only because they use different counting rules. An exclusive date range counts from the start date up to, but not including, the end date. An inclusive date range counts both the first day and the last day. If you are counting the days until rent is due, a filing deadline, or a vacation that includes both travel days, the inclusive option is usually the better fit.
Example: from April 2, 2026 to April 9, 2026, the exclusive count is 7 days. If you include April 9 as a full day, the range becomes 8 days. That one-day difference is why so many people search for why is my day count off by one.
Use calendar days when every date in the range matters, such as an event countdown, a trip, a subscription period, or a school break. Use business days when you care about operating days only, such as payroll processing, contract review, customer support SLAs, delivery estimates, or permit processing.
Because this page shows both totals, you do not need to switch to another workday calculator with holidays just to compare outcomes. You can see the full calendar span and the narrower business-day span at the same time.
The result panel is designed to answer several different planning questions from one date range, not just the raw number of days between two dates.
Total days is the full calendar-day span in your chosen range. It answers the broad question, "How long is this period?" This value is useful for vacations, notice periods, project phases, and any inclusive date range where every date matters.
Counted days is the adjusted answer after your rules are applied. If you turn off weekends, Saturdays and Sundays are removed. If you also turn off holidays, holiday dates are removed too. This is the number to use when you need a workday calculator between dates rather than a simple calendar count.
Weekdays means Monday through Friday in the full date difference. Working days is narrower because it removes weekday holidays from that total. Weekend days shows how many Saturdays and Sundays are in the range. Holiday days shows the holiday count based on the standard US holiday list used on this page.
Suppose your team starts a product sprint on Monday, March 2, 2026 and the launch review is set for Friday, April 10, 2026. If you include the end date, the total calendar span is 40 days. Inside that period, there are 10 weekend days. That leaves 30 weekdays. If one weekday holiday falls in the range, your working-day total becomes 29.
In plain terms, you can tell stakeholders that the project lasts 40 calendar days, but the team only gets 29 working days for meetings, approvals, production, and QA. That distinction helps you plan more realistic schedules.
Years, months, weeks, hours, minutes, and seconds give context for readers who prefer a calendar-style summary rather than a single number. This is especially helpful for long-term planning across quarters, school years, or benefit waiting periods.
For internal planning, this calculator is usually enough. For court filings, tax deadlines, union agreements, and agency rules, confirm whether the governing rulebook uses calendar days, business days, observed holidays, or local state holidays.
If your result feels one day short, the end date probably needs to be included. That is common for vacations, staffing rosters, and project delivery windows.
If you want to know how to calculate days between two dates manually, this is the basic logic behind the calculator.
Start with two calendar dates: a start date and an end date. The exclusive day count is the end date minus the start date. If you need an inclusive date range, add 1 day to the end date before you count. Written simply:
Total days = end date - start date
Inclusive total days = (end date - start date) + 1
To find business days, subtract weekend days from the total. To find holiday-adjusted workdays, subtract the selected holidays that fall inside the range. When weekends are already excluded, only weekday holidays reduce the count.
Imagine you need the number of weekdays from July 1, 2026 through July 15, 2026, including the end date.
This is why the calculator tracks holiday days and weekday holiday days separately. It prevents double-subtracting a date that is already excluded for being a Saturday or Sunday.
The page uses the Gregorian calendar, which is the civil calendar used across the United States. It counts whole dates rather than clock times, so daylight saving changes do not create off-by-one errors. Weekend days are Saturday and Sunday. Holiday handling is based on the preset holiday list shown in the calculator logic.
If your workplace treats Saturday as a business day, or if your agency uses observed holidays instead of fixed-date holidays, adjust your interpretation of the result before using it in a policy or compliance setting.
A good date difference tool becomes more useful when you match the settings to the real problem you are solving.
If a design project runs from May 4, 2026 to June 12, 2026, the inclusive calendar span is 40 days. If you exclude weekends, the usable workday count drops fast. Use the workday total when you estimate review rounds, not the larger calendar count.
A seller promising delivery in 7 business days should not count Saturday and Sunday. If an order is placed on Tuesday, September 1, 2026, 7 business days later lands much later than 7 calendar days later. This is where a business days calculator between dates prevents overpromising.
If a new hire starts on August 3, 2026 and a benefits waiting period is 30 calendar days, count all days. If the rule says 30 business days, exclude weekends and clarify whether company holidays count. Small wording differences change the answer.
Teachers and parents often need the number of weekdays between two dates rather than full calendar days. A semester from January 12, 2026 to May 22, 2026 includes many weekend days and scheduled breaks, so the weekday count gives a more realistic class-day estimate.
For a vacation from December 20, 2026 through December 27, 2026, most travelers want an inclusive total because both travel days count. If you only count nights or full days away, use exclusive logic instead and compare the numbers before you book.
A 10-day review period can mean very different things depending on the contract. Some agreements use calendar days. Others use business days. In California and New York, legal and real-estate timing rules may also depend on state-specific holidays or observed closure days, so always check the governing form before you rely on a generic count.
Competitor pages that rank well usually explain holiday rules in more detail. That matters because holiday handling is where many workday calculations become confusing.
This day counter uses a US-focused list that includes New Year's Day, Martin Luther King Jr. Day, Presidents' Day, Memorial Day, Juneteenth, Independence Day, Labor Day, Columbus Day, Veterans Day, Thanksgiving, Black Friday, Christmas Eve, Christmas, and New Year's Eve. That makes the tool useful for many workplace and project workflows in the United States.
Still, your employer or agency may use a different holiday calendar. Banks, schools, shipping carriers, and state agencies often define non-working days differently. If you need a filing deadline in Texas, a settlement timeline in California, or a local government schedule in Florida, compare the result with the relevant state or agency calendar.
A common mistake is subtracting a holiday twice when it falls on a weekend. If July 4 lands on Saturday and weekends are already excluded, subtracting the holiday again would undercount the true workday total.
LiteCalc handles this by tracking all holiday days and weekday holiday days separately. If weekends are included, all selected holidays can reduce the counted total. If weekends are already excluded, only weekday holidays reduce it. That is the cleanest way to calculate weekdays between dates without hidden errors.
Explore more LiteCalc tools for planning dates, deadlines, and time intervals with better context.
Use our pregnancy and deadline due date calculator when you need to project a future date from a known start point.
Try the date calculator for adding or subtracting days, months, and years from any start date.
Use the time calculator for hours, minutes, and elapsed time math when the problem is smaller than a full calendar date range.
Check the time card calculator for employee hours and payroll tracking when you need shifts rather than calendar days.
Open the time zone calculator for meeting and deadline coordination across regions when date math also depends on location.
Visit the time duration calculator for measuring elapsed time between events without using a full business-day workflow.
Quick answers to the questions people ask most about date difference, workdays, and inclusive counting.
Count the number of calendar dates from the start date to the end date. If the last day should count too, use inclusive counting and add one extra day to the exclusive total.
It can. When you check include end date, the calculator counts the final date as a full day. Leave it unchecked if you want the standard exclusive date difference.
Take the total calendar span, subtract Saturdays and Sundays, then subtract any weekday holidays you do not want counted. That gives you the workday total.
If holidays are included, they stay in the total. If holidays are excluded, the calculator removes holiday dates from the counted total. If weekends are already excluded, only weekday holidays reduce the count.
That depends on the exact date range and whether holidays are counted. Use the workday result when you need the number of weekdays available for business, school, or office tasks.
The simplest formula is end date minus start date. For an inclusive range, add one day. For business days, subtract weekend days and any weekday holidays that should not count.
Yes. Clear the weekend option to exclude Saturdays and Sundays from the counted result while still keeping the full calendar span visible in the breakdown.
The most common reason is inclusive versus exclusive counting. If the last day matters in your schedule, turn on include end date and compare the result again.
Yes. Leap days such as February 29 are counted automatically, so your elapsed time stays accurate even when the range crosses a leap year.
Yes. It works well for project schedules, vendor lead times, onboarding plans, classroom calendars, trip planning, and other real-world date ranges where workdays and holiday rules matter.