Бесплатный калькулятор дат - дни между датами & сложение/вычитание
Find the difference between dates or add/subtract days.
How is the date difference calculated?
The difference is calculated using exact calendar days between the two dates. The result also shows the equivalent in weeks, months, and years for convenience. Leap years are automatically accounted for.
Does this account for leap years?
Yes. All calculations use JavaScript's native Date object which correctly handles leap years, month lengths, and daylight saving time transitions.