Days Calculator - Days Between Dates Calculator
Use our free days calculator to calculate days between dates, days until a date, or days since a date. Our time between dates calculator provides accurate day, week, month, and year calculations.
Calculate the number of days between dates, days until a future date, or add/subtract days from any date. Perfect for day counting and date arithmetic.
Days Calculator
Calculation Results
Enter your dates to calculate days
Days Calculator Information
Calculation Types
- • Days Between: Calculate days between two dates
- • Days Until: Days from today to a future date
- • Days Since: Days from a past date to today
- • Add Days: Add days to a specific date
- • Subtract Days: Subtract days from a specific date
Common Uses
- • Project Planning: Calculate project duration
- • Event Countdown: Days until special events
- • Age Calculation: Calculate exact age in days
- • Deadline Planning: Days until deadlines
- • Date Arithmetic: Add or subtract days from dates
About the Days Calculator
Our free days calculator counts the number of days between two dates, or adds and subtracts days from a date. Use it for project timelines, payment terms, age in days, and countdowns. Enter start and end dates to get the exact day count, or one date plus days to add or subtract. For working days only (excluding weekends and holidays), use our business day calculator. For age in years and months, try our age calculator.
You may also find our business day calculator, date calculator and age calculator useful.
Frequently Asked Questions
How do I count days between two dates?
Enter the start date and end date. The calculator shows the total number of calendar days between them.
Can I add or subtract days from a date?
Yes. Enter the starting date and the number of days to add or subtract. You get the resulting date.
What is the difference between days calculator and business day calculator?
The days calculator counts all calendar days. The business day calculator counts only weekdays (Monday–Friday) and can exclude public holidays.