Days Until Calculator

Count down to any future event. Calculate days, weeks, months until weddings, vacations, birthdays, and important milestones.

Event details

Event name (optional)

Target date

Include today in count

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This days until calculator is a free countdown calculator that answers "how many days until" any future date. Use it as a day counter or date countdown for events like weddings, vacations, birthdays, project deadlines, and holidays. You get the exact days remaining and time until your date in years, months, weeks, and days—plus total weeks, hours, and minutes, weekday and weekend counts, and milestone markers (e.g. 100 days, 1 month). Whether you're building a countdown timer to summer vacation, your wedding day, or a launch date, this event countdown tool gives you the numbers and milestones you need.

How to Use Days Until Calculator

Enter event name (optional)

Type a short name (e.g. Wedding, Vacation, Exam, Christmas) to personalize your countdown. Leave blank to use "Your Event".

Select your target date

Use the date picker to choose the future date you're counting down to. The date must be tomorrow or later. This days left calculator works for any date—from how many days until my vacation to countdown to New Year's or days until graduation.

Include today (optional)

Check "Include today in count" if you want today to count as day one. Uncheck for a strict "days from today" style count.

View your countdown

Click Calculate to see total days, a full time breakdown, weekday and weekend counts, and milestones (e.g. "6 months until [your date]", "100 days until [your date]"). Use the weekday count when you need to know how many weekdays until a deadline or event.

Calculator Features

📅

Event countdown & day counter

Enter any target date to see exactly how many days remain. Perfect for wedding countdown, vacation countdown, birthday countdown, or countdown to anniversary.

📊

Full time breakdown

See years, months, weeks, and days, plus total weeks, total hours, and total minutes until your date—so you can calculate days and time until any event.

🎯

Milestone calculator

Upcoming markers like "100 days until [date]", "1 month until [date]", and "1 week until [date]" with the exact date you'll hit each milestone.

📆

Weekdays & weekends

Count of weekdays (Mon–Fri) and weekend days until your event—ideal for "how many weekdays until" a project deadline or exam date.

✅

Future dates only

Validation ensures the target date is in the future. Use a date difference calculator for past dates or time between two dates.

Complete Function List

Days until calculator for any future date:
Countdown calculator with event name (optional):
Day counter and days remaining display:
Time until calculator: years, months, weeks, days
Total weeks, hours, and minutes until date:
Weekday and weekend day counts (business days):
Milestone calculator: 100 days, 50 days, 1 month, 1 week, etc.
Day of week and season of target date:
Include today in count (optional):
Reset to clear inputs and results:

Common Calculations & Examples

Example 1: Countdown to wedding day

Problem: You want to know how many days until my wedding (e.g. August 15, 2026).

Steps:

Enter "Wedding" in the event name field
Select your wedding date in the date picker
Click Calculate

Result: You see total days, breakdown (e.g. 6 months, 1 week, 5 days), total weeks, weekdays/weekends, and milestones like "100 days until [your date]".

Explanation: Use this countdown to wedding day for planning and sharing with family. Works like a dedicated wedding countdown calculator.

Example 2: Vacation countdown & days until my vacation

Problem: Your trip starts soon and you want the exact count down to vacation—or "how many days until my vacation starts".

Steps:

Enter "Vacation" or "Summer trip" (optional)
Select the first day of your trip
Click Calculate

Result: Total days, weeks, and hours until the trip, plus weekday count for work handoff. Great for countdown to summer vacation or any trip.

Explanation: Helps with packing, handoff, and excitement. Use for "how long until my trip" or "days until my vacation".

Example 3: How many days until project deadline

Problem: You need to know how many days until project deadline or how many weekdays until a delivery date.

Steps:

Enter the project or milestone name
Select the deadline or launch date
Click Calculate

Result: Total days and the Weekdays count shows business days remaining—ideal for countdown to launch date, days until end of quarter, or days until meeting date.

Explanation: Use the weekday count to plan sprints and "how many days until presentation" or "how many days until contract ends".

Example 4: Days until birthday & birthday countdown

Problem: You want a days until birthday calculator—e.g. how many days till my birthday or how many days until Christmas, Valentine's Day, or New Year.

Steps:

Enter "Birthday", "Christmas", or the person's name (optional)
Select the birthday or holiday date
Click Calculate

Result: Exact days remaining and milestones. Use for birthday countdown, how many days until Christmas, countdown to New Year's, or days until Thanksgiving.

Explanation: Works for any holiday or birthday—e.g. days until Halloween, how many days until Easter, or countdown to 4th of July.

Example 5: Days until graduation & academic countdown

Problem: You need to know how many days until I graduate, days until exam date, or countdown to finals week.

Steps:

Enter "Graduation", "Exam", or "Finals" (optional)
Select the graduation day, exam date, or last day of school
Click Calculate

Result: Total days and weekdays until the date. Useful for days until graduation, how many days until semester ends, countdown to graduation day, or days until spring break.

Explanation: Plan study schedules with "days until exam date" or "days until last day of school". Countdown to college graduation or summer break.

Example 6: Countdown to baby due date & life milestones

Problem: You want to know days until baby is born, how many days until my due date, or countdown to anniversary.

Steps:

Enter "Baby", "Due date", or "Anniversary" (optional)
Select the due date or anniversary date
Click Calculate

Result: Exact days remaining and milestones. Use for countdown to baby due date, how many days until my due date, or countdown to anniversary date.

Explanation: Also works for days until retirement calculator ("how many days until I retire"), countdown to conference, or days until promotion.

Why can I only select a future date?

This days until calculator is for counting down to an event—so the target date must be in the future. For time between two dates (past or future), use a date difference calculator instead.

How do I count days until an event?

Enter your target date (and optional event name), then click Calculate. You get the exact days remaining, a full time breakdown, and milestone dates. It's one of the simplest ways to count days until an event.

What does "Include today in count" mean?

When checked, today is day 1 of the countdown (days from today including today). When unchecked, the count is the number of full days from tomorrow until the target date.

How are weekdays and weekends counted?

Weekdays are Monday–Friday; weekends are Saturday and Sunday. The count includes every day from today (or tomorrow) through the target date. Use this when you need to know how many weekdays until a deadline or event.

What are milestones?

Milestones are countdown markers like "6 months until [your date]", "100 days until [your date]", and "1 week until [your date]". The tool shows the exact date when you will have that many days left—e.g. the date that is 100 days before your event.

How to calculate days until a date?

The days until calculation is the number of calendar days from today (or tomorrow, if you exclude today) to the target date. The tool breaks that into years, months, weeks, and days and accounts for leap years. Use this calculator to calculate days until any future date.

Does it work for holidays like Christmas or New Year?

Yes. Use it as a countdown to Christmas, how many days until New Year, days until Thanksgiving, Valentine's Day, Halloween, Easter, or 4th of July. Enter the holiday date and optional name (e.g. "Christmas 2026").

Can I use it for work deadlines and exams?

Yes. Use it for how many days until project deadline, countdown to launch date, days until exam date, days until presentation, or countdown to conference. The weekday count shows business days remaining.

Does it account for leap years?

Yes. The calculation uses calendar dates, so February 29 and varying month lengths are handled correctly.

What is the best countdown calculator?

A good countdown calculator shows total days, a clear time breakdown, weekdays vs weekends, and milestones. This days until calculator does all of that and works for any future date—wedding, vacation, birthday, deadline, or holiday.

Days Until Calculator

How to Use Days Until Calculator

Enter event name (optional)

Select your target date

Include today (optional)

View your countdown

Calculator Features

Event countdown & day counter

Full time breakdown

Milestone calculator

Weekdays & weekends

Future dates only

Complete Function List

Common Calculations & Examples

Example 1: Countdown to wedding day

Example 2: Vacation countdown & days until my vacation

Example 3: How many days until project deadline

Example 4: Days until birthday & birthday countdown

Example 5: Days until graduation & academic countdown

Example 6: Countdown to baby due date & life milestones

Tips for Using Days Until Calculator

Frequently Asked Questions

Understanding Days Until Calculator

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