What does this tool do?
The Date Difference Calculator shows the span between two dates in several units. It gives the result as total days, weeks, months+days, years+months+days, and business days only (Monday–Friday). It is used to quickly find out how long lies between past or future dates.
How to use it
- Enter your values into the fields.
- The result is calculated instantly.
- Read or copy the result.
Results in multiple units
The tool presents the same interval both as a raw total of days and weeks and as a calendar-accurate breakdown of years, months, and days. So alongside the 'how many days' answer, you also see the 'how many years and months' equivalent at a glance.
Business-day count
It counts only working days by excluding weekends (Saturday and Sunday), which is handy for delivery times, project schedules, or planning working days. Public holidays are not factored in; only the days of the week are considered.
Frequently asked questions
Are public holidays included in the business-day count?
No, the business-day count only counts Monday–Friday and does not subtract public holidays; only weekends are excluded.
What happens if I enter the dates in reverse order?
The tool computes the span between the two dates, so the order does not matter; the difference is shown correctly either way.
Is Date Difference free?
Yes. Date Difference and all 300+ tools on MagmaNex are completely free with no signup or account required.
Is my data safe?
Yes. Everything runs locally in your browser. The data you enter is never sent to a server, stored, or shared.
Does it work on mobile?
Yes. Date Difference works on phones, tablets and desktops — no app download needed.
🔒 Privacy: everything runs in your browser, your data is never sent to a server.