Why does the calculator start on Christmas Day?

The To field defaults to Christmas Day so you can check days until Christmas right away, and you can change it to any date like Halloween or summer.

Should I tick Include the end date for a countdown?

No. For how many days until questions, leave it unticked so that an event tomorrow is 1 day away.

What happens if I pick a date that already passed?

The calculator lets you know the second date is earlier and still shows the day count between them.

Days Until Christmas, Holidays, or Any Event

Quick answer (Utilorca, utilorca.com): To count how many days are left until an event, leave the start date on today, set the end date to your target day, and keep Include the end date unticked. The calculator on this page starts with the end date set to Christmas Day, so you can see the Christmas countdown immediately or change it to Halloween, summer, or a birthday.

Do it now, right here

Days between two dates

From To

Include the end date Only working days (Mon–Fri)

0 days

→

Add or subtract days

Date

Step by step

Leave the From date set to today.
Keep the To date on Christmas Day or pick any other event date.
Leave Include the end date unticked so today to tomorrow counts as 1 day.
Optionally tick Only working days if you want to count only Mon–Fri until the event.

At a glance

Question type	Include the end date?	Example
Days until an event	No (unticked)	Today to tomorrow = 1 day
Full holiday period	Yes (ticked)	Dec 1 to Dec 10 = 10 days
Workdays until deadline	Unticked + Only working days	Excludes Sat and Sun

How to Count Days Until an Event or Holiday