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Date & Time

Countdown Calculator

Time remaining to any future date.

Enter your values

Enter the from date in YYYY-MM-DD.

Enter the event date in YYYY-MM-DD.

Results update instantly as you type — no submit needed. Your values are remembered on this device, and the shareable link reopens the calculator with exactly these numbers.

Results
Days remaining
150
Weeks remaining
21.4
Working days left
108
Weekends left
21
Falls on a
Friday

Quick answer

Subtract today's date from the event date; the remaining working days are what usually matter for deadlines.

At a glance

What it doesTime remaining to any future date.
CategoryDate & Time
Inputs neededFrom date, Event date
Main outputDays remaining
CostFree — no sign-up, no download

How to use the Countdown Calculator

  1. 1Enter today's date.
  2. 2Enter the event or deadline date.
  3. 3Read the days and working days remaining.

Inputs explained

From date(YYYY-MM-DD)
Enter the from date in YYYY-MM-DD.
Event date(YYYY-MM-DD)
Enter the event date in YYYY-MM-DD.

Worked example

Using the values the calculator loads with:

Inputs

  • From date2026-07-28 YYYY-MM-DD
  • Event date2026-12-25 YYYY-MM-DD

Results

  • Days remaining150
  • Weeks remaining21.4
  • Working days left108
  • Weekends left21
  • Falls on aFriday

Frequently asked questions

Why show working days?

For project deadlines, only working days count towards delivery — a 30-day gap may be just 21 working days.

Does it include the event day?

Days remaining counts up to but not including the event day.

What do I need to enter into the Countdown Calculator?

Just 2 values: from date, event date. Every field starts with a realistic example, so you can change one number at a time and watch the result update instantly.

How does the Countdown Calculator work out the answer?

Subtract today's date from the event date; the remaining working days are what usually matter for deadlines. The working is shown step by step so you can verify the result by hand.

Is the Countdown Calculator free, and do I need an account?

It is completely free with no sign-up, no download and no usage limit. Everything is calculated in your browser, so the numbers you type never leave your device.

Results are estimates for general information. For medical, legal, structural or financial decisions, confirm with a qualified professional.