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Randozi

Days Between Dates Calculator

Pick a start date and an end date to see how many days, weeks and months separate them.

Days between the dates

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How it works

  1. Choose the start date and the end date. If the end date comes first, the calculator still counts the gap and tells you.
  2. Tick “Include end date” to count both the first and the last day — for example, a trip or an event that lasts the whole period.
  3. Tick “Business days only” to count Monday to Friday and skip weekends.
  4. Read the total in days, in weeks and days, and in years, months and days.

What people use it for

  • Deadlines and notice periods

    Count the working days left before a deadline, a delivery date or the end of a notice period.

  • Trips and events

    Count the days of a vacation or a hotel stay, including both the arrival and departure days if you need to.

  • Projects and contracts

    Measure how long a project, a lease or a subscription lasted, in months and days.

Questions

Is the end date included?
Not by default: from Monday to Tuesday is 1 day. Tick “Include end date” to count both days, which adds one day to the total (Monday to Tuesday becomes 2 days).
Are public holidays excluded from business days?
No. Business days are simply Monday to Friday. Holidays depend on the country, state and employer, so subtract any that fall in your period yourself.
How are months counted when they have different lengths?
Whole months are counted from the start date’s day; if that day doesn’t exist in a month, the month’s last day is used. January 31 to February 28, 2025 is therefore exactly 1 month.