Days Ago Calculator

How It Works

This calculator subtracts any number of days from today's date (or a custom start date) to find the exact past date. It correctly handles month rollovers, year boundaries, and leap years. Business days mode skips weekends.

Calendar Days vs Business Days

Calendar days count every day including weekends. Business days count only Monday through Friday. For example, 10 business days ago is about 14 calendar days ago (2 full work weeks).

Common Use Cases

• Tracking warranty start dates — when did I purchase this?
• Medical records — what date was 90 days ago?
• Legal deadlines — verifying statute of limitations periods
• HR and payroll — calculating probation periods or hire dates
• Financial records — finding transaction dates X days back

Popular Day Counts Ago

Pre-computed past dates for the most commonly searched day counts.

Frequently Asked Questions

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