Calculate days, months and years between two dates
Date Difference Calculator is a free online browser-based utility designed to calculate days, months and years between two dates. All computations, processing, and rendering happen completely inside your browser client, ensuring your data is kept secure and private.
Choose a Start Date and an End Date and the tool shows the difference straight away in years, months and days, plus total days, weeks, hours and minutes. For example, 10 July 2026 to 17 July 2026 is 7 days, or 1 week.
It adds one extra day so both the start and end days are counted. Without it, 10 July to 17 July is 7 days. With it, the same dates give 8 days. Use it for things like hotel nights versus days on site, or leave periods where both days count.
No. It counts every calendar day, including weekends and holidays. If you need working days, subtract the weekends and holidays yourself. Total hours and minutes are simply the day count times 24 and 1440.
The tool swaps the two dates and shows a positive gap, flagging that the order was reversed, so you still get the correct length of time. You can therefore enter the dates in either order, for example when calculating how long ago something happened.
It counts whole calendar years and months from the start date, then the remaining days, borrowing from the previous month when needed. Because months have different lengths, the months-and-days breakdown can differ slightly from what you get by dividing days by 30.
They are shortcuts that set the End Date relative to your Start Date, for example 30 days later, 3 months later, or the end of the year. Use them to quickly see a deadline or end date and its total number of days without picking it by hand.
No. Toolskyt operates under a zero-server policy. All calculations, data formatting, and file exports are executed locally on your machine.
No, this tool is 100% free. There are no limits, sign-ups, subscriptions, or hidden charges required.