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Date & Age Calculator

Calculate the days, weeks, months, and years between two dates. Works as an age calculator when the end date is today.

Start Date (or birth date)

End Date (leave blank for today)

Limitations: Treats dates as local time. Pre-1000 AD may not parse reliably. For legal age-of-majority disputes, check the official source.

What to do next: Enter birth date as the start and leave end blank to get your exact age in years, months, and days.