Days Calculator
Calculate the exact number of days between two dates, add or subtract days from any date, or find what date it will be a certain number of days from today. All calculations are instant and accurate.
Days Between Two Dates
Add or Subtract Days
Days From Today
Popular Day Calculations
Need a quick answer? These are the most commonly searched day calculations — from 7 days (one week) to 90 days (roughly one quarter). Each link shows the exact target date, a full calendar view highlighting every day in between, and useful date conversions. Whether you are tracking a return policy deadline, a contract notice period, or a project milestone, these pre-calculated results give you instant answers.
Frequently Asked Questions
Enter the start date and end date in the "Days Between Two Dates" calculator above. The tool will instantly calculate the exact number of days between the two dates, including both calendar days and the day of the week for each date.
Yes, the calculator uses the native JavaScript Date object which correctly handles leap years. February 29th is properly included in calculations for leap years (years divisible by 4, except centuries not divisible by 400).
Absolutely. You can enter any past date as your start or end date to calculate days between historical dates. You can also use the "Add or Subtract Days" calculator with the "Subtract" option to find a date in the past.