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Age & Date Difference
Exact age, or the gap between two dates.
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- 1Choose toolOpen the Vootkit workspace.
- 2Add inputProvide the content or settings.
- 3ProcessLet the browser do the work.
Private by designProcessed on your device where possible.
Works on any deviceDesktop, tablet and mobile browsers.
No installationOpen the page and start working.
Always free coreUse the free plan for everyday tasks.
How to use Age & Date Difference
Provide the content or settings.
02Let the browser do the work.
03Copy, download or continue.
04Your files stay private
Your work is processed locally in your browser where possible and is never added to a Vootkit upload library.
Learn more about privacyWorking out an exact age is fiddly precisely because months are not the same length. "Two years, three months and eleven days" cannot be derived from a day count, and a day count cannot be derived from it either.
What Age & Date Difference does
Gives the gap between two dates as years, months and days, and also as a total in days, weeks and hours.
Both readings are useful for different things. Years-months-days is how people describe an age; totals are what you need for deadlines, notice periods and anything counted rather than named.
What it reports
| Calendar gap | Years, months and days |
|---|---|
| Total days | The exact count between the dates |
| Total weeks | Days ÷ 7 |
| Total hours | Days × 24 |
| Leap years | Handled — they are real days in the total |
| Direction | Works forwards or backwards, so it covers future dates too |
| Inputs | Two dates |
Detailed steps
- Enter the start date.
- Enter the end date — today for an age, a future date for a countdown.
- Read whichever figure suits: the calendar gap for describing it, the totals for counting it.
Worth knowing
The two answers genuinely disagree and both are right. Someone born on 29 February has a birthday every four years but ages one year every year, and "18 months" is a different number of days depending on which months they were. If a contract or a deadline is involved, use the total-days figure — it is the one that is unambiguous.
Frequently Asked Questions
Why does the month count seem off by a day?
Because months vary between 28 and 31 days, so "one month later" from the 31st is ambiguous. The calendar gap counts whole months first and the remainder in days, which is how people describe an age but is not a fixed number of days.
Are leap years included?
Yes. They are real days and appear in the total-days figure. That is why a span covering a leap year has one more day than an otherwise identical one that does not.
Can I calculate a future date gap?
Yes — put today first and the future date second. It works in both directions, so it covers deadlines and countdowns as well as ages.
Which figure should I use for a legal deadline?
Total days, unless the rule specifically says months. Day counts are unambiguous; month counts depend on which months and on how the drafter intended partial months to be treated.
Is Age & Date Difference free?
Yes. The Vootkit free plan includes 5 tool runs a day. Upgrade to Vootkit Pro for unlimited daily use, an ad-free workspace and saved workflows.
Are my files uploaded?
No. Age & Date Difference runs entirely in your browser — your file is processed on your own device and never sent to a server. There is nothing for us to store or delete.
Do I need to install anything?
No. Age & Date Difference works in any modern browser on desktop, tablet or phone. Open the page and start.
How often can I use it? Is there a daily limit?
On the free plan you get 5 tool runs a day. When you reach the limit you'll see a prompt to upgrade, and it resets the next day. Vootkit Pro removes the cap entirely for unlimited daily use.
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This tool processes everything locally in your browser. You can disconnect from the internet after the page loads and it will still work.