Find the Exact Gap Between Two Dates
How many days until your deadline? How many months since you started a project? Enter two dates and instantly see the difference broken down into days, weeks, months, and years — no mental math required.
How to Use the Date Difference Calculator
1
Enter your start date in the first field.
2
Enter your end date in the second field.
3
View the difference displayed in days, weeks, months, and years.
Frequently Asked Questions
Does it account for leap years?
Yes. The calculator uses calendar-aware arithmetic that correctly handles February 29 and varying month lengths.
Can I include the end date in the count?
By default the calculation is exclusive of the end date (the standard convention), but you can toggle inclusive counting if needed.
What date formats are accepted?
Enter dates in most common formats including YYYY-MM-DD, MM/DD/YYYY, or DD/MM/YYYY. The tool auto-detects your format.