Choose two dates
Select the first day and the last day you want to compare.
Free date calculator
Days Between Two Dates
Find the calendar days between dates in seconds. Enter a start and end date to answer “how many days are between dates?” with a clear result—without creating an account or sending us your dates.
Calendar-day accurateOptional inclusive countPrivate in your browser
Date and date calculator
Compare any two dates, including dates across months and leap years.
A simple way to count calendar days between dates
Choose your count
Leave inclusive counting off for days strictly between, or turn it on to count both dates.
Use the result
See a day total and a weeks-and-days summary for planning, trips, school breaks or family schedules.
Days between dates: frequently asked questions
How does this Days Between Two Dates calculator work?
It converts each selected calendar date to a UTC midnight date and subtracts them. That keeps daylight-saving clock changes from changing a calendar-day total.
How many days are between dates when I do not include both dates?
The standard result is the number of midnight-to-midnight calendar days from the start date to the end date. For example, January 1 to January 2 is one day.
What does “include both dates” mean?
Inclusive counting includes the start date and the end date. January 1 through January 2 is therefore two calendar dates when this option is selected.
Does the date calculator between 2 dates handle leap years?
Yes. The calculation uses the actual Gregorian calendar date values, so February 29 is included when the selected year is a leap year.
Does the current time zone affect the result?
No. This tool measures date-to-date calendar days only, not hours and minutes. Your current clock and time zone do not change the displayed total.
Are my dates saved or shared?
No. The calculation happens in your browser. OneFamli does not require an account and this tool does not store the dates you enter.
Plan a date range with confidence
When you need to know the calendar days between dates, start by deciding whether you mean elapsed days or every date on the calendar. That small distinction makes a difference for family trips, school holidays, countdowns and appointment windows.
If you are asking how many days in between dates, this calculator gives the elapsed calendar-day total first. Switch on inclusive counting when a schedule needs to include both the first and last day, such as a five-day camp running Monday through Friday.
People also search for how many days are between dates when planning a deadline. This date and date calculator is designed for straightforward date comparisons; it is not legal, payroll, visa or medical advice, so confirm formal deadlines with the organization that set them.
Use this date calculator between 2 dates alongside your household plan, then move the important dates into a shared calendar so the people involved can see the same schedule.
How we calculate—and what to check
Method: OneFamli calculates from the two date values at UTC midnight, then reports the difference in whole calendar days. This avoids daylight-saving time changing the result. Scope: It does not calculate business days, working hours, time zones, or official filing rules. For high-stakes dates, confirm the governing policy. About this tool: It is a free browser utility from OneFamli, built to help households make ordinary plans more clearly. Learn more about OneFamli or contact us with a correction or question.