1 Year Ago
One year ago is the classic anniversary and year-over-year comparison anchor. Subtract one calendar year from today—or any reference date—to find the same month and day in the prior year, adjusting for leap days when needed.
Last updated: July 17, 2026
One year ago was July 21, 2025. Calendar-year subtraction preserves the month and day when possible.
How this calculator works
The engine subtracts one calendar year from July 21, 2026, landing on July 21, 2025 when using today as reference.
February 29 dates adjust to February 28 in non-leap years per standard calendar rules.
Change the reference date for fiscal anniversaries, policy renewals, or YoY metrics tied to a specific close.
Worked example
From July 21, 2026, one year ago was July 21, 2025. Year-over-year sales decks often compare that date to today.
Enter a product launch date to see the calendar anniversary one year earlier for campaign retrospectives.
Practical use cases
Finance and analytics teams chart metrics versus one year ago. HR reviews compensation as of the same date last year.
Marketers plan annual promotions aligned to prior-year performance on the same calendar day.
Compare with 365 days ago when a policy uses a fixed day count instead of calendar years.
Frequently asked questions
One calendar year before today was July 21, 2025.
Usually close, but not identical in leap years. One calendar year follows year boundaries; 365 days is a fixed day count.
Subtracting one year from February 29 in a non-leap year typically lands on February 28, following standard calendar conventions.
Yes. Enter any reference date to find the same calendar point one year earlier.
Use the Add Days Calculator with years as the unit or add 365 days from today for a day-count alternative.
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Written & Reviewed by
DateCalx Team
Editorial Team
The DateCalx Team researches, builds, tests, and reviews every calculator to ensure accurate, reliable, and easy-to-understand date and time calculations. Our goal is to provide fast, trustworthy tools for everyday personal, educational, and professional use.
Last reviewed: July 17, 2026
Learn more in our About, Editorial Policy, and Methodology pages, or contact the DateCalx Team.