Instantly find the duration between any two dates. Count days, weeks, months, years, or exclude weekends for business days. Precise chronological difference calculation.
* Standard calendar breakdown without excluding weekends
Common date difference queries answered instantly
Time is the most valuable resource, yet calculating it accurately between dates is surprisingly difficult. Whether you're tracking project timelines, calculating interest periods, or planning events, our calculator gives you precise results in seconds.
Choose your beginning date using the calendar picker or type it manually.
Choose your ending date. The calculator works with past and future dates.
Choose to exclude weekends or include the end date in the count.
View detailed breakdown including years, months, days, weeks, and hours.
Months have 28, 29, 30, or 31 days. Counting manually often leads to incorrect results when crossing month boundaries.
Years divisible by 100 are not leap years unless divisible by 400. Missing this rule can throw off calculations by days.
Exclude weekends (Saturday & Sunday) to calculate working days only. Essential for project planning and business deadlines.
Works with all international date formats (MM/DD/YYYY, DD/MM/YYYY, YYYY-MM-DD) automatically.
Calculate precise delivery windows and lead times, accounting for month-end variations and business days.
Determine exact filing deadlines and contract milestones to avoid legal breaches and penalties.
Calculate interest periods, bond maturities, and investment terms with exact day counts.
Track visa validity periods and calculate mandatory exit dates to avoid overstay penalties.
To calculate the days between two dates, subtract the timestamp of the start date from the end date. Our calculator handles this automatically, taking into account leap years and month lengths (28/30/31 days). Simply enter your dates and click "Calculate Duration" for instant results.
Check the "Exclude Weekends" box in the calculator. This will show you only Monday through Friday days between your dates. Perfect for calculating business days, project timelines, or work schedules.
Use the formula =DATEDIF(A1, B1, "d") where A1 is your start date and B1 is your end date. For business days, use =NETWORKDAYS(A1, B1). Our calculator is faster and requires no formulas.
When you check "Include End Date," the calculator adds one day to the total. This is useful when you want to count both the start and end dates inclusively (e.g., for hotel bookings where you pay for both arrival and departure days).
Join thousands of professionals who use our Date Difference Calculator for precise planning. Whether it's for legal contracts, supply chains, or personal milestones, accurate timing starts here.
