acalculator

Days until April Fools’ Day

April Fools’ Day 2027 is on Thursday, April 1, 2027. The count starts from today’s date; pick another date to count from it instead.

Your numbers

Days until April Fools’ Day
184

From September 29, 2026, there are 184 days until April Fools’ Day on Thursday, April 1, 2027.

Date
Thursday, April 1, 2027
Day of the week
Thursday
In weeks
26 weeks and 2 days

Answer for the example date Tuesday, September 29, 2026. It changes to today's date when the page loads.

Days until April Fools’ Day: 184. From September 29, 2026, there are 184 days until April Fools’ Day on Thursday, April 1, 2027.

Where is April Fools’ Day on the calendar?

How to calculate

Counts the days from today, or any date you choose, to the next April Fools’ Day, with its date and day of the week.

Example with the default inputs (Count from September 29, 2026) on the example date Tuesday, September 29, 2026: From September 29, 2026, there are 184 days until April Fools’ Day on Thursday, April 1, 2027.

Method: Find the first date of April Fools’ Day on or after the start date, then count the days from the start date to it.

  • April Fools’ Day is April 1 every year.
  • Start dates from January 1, 1900 to December 31, 2400 work, because the date field accepts that range.
  • The start date itself is not counted: from the day before, the count is 1; on the day itself, it is 0.
  • Dates are calendar days with no time of day, so a time zone or a daylight-saving change never adds or loses a day.

Machine-readable copies: Markdown, JSON.

Worked examples

Each example is checked against the calculator on every build.

  1. Count from 2026-01-01 gives Date 2026-04-01, Days until April Fools’ Day 90.Source: the rule written again in Python 3 (datetime); docs/progress/WP-43.md
  2. Count from 2026-04-02 gives Date 2027-04-01, Days until April Fools’ Day 364.Source: the rule written again in Python 3 (datetime); docs/progress/WP-43.md

Other questions people ask

When is April Fools’ Day 2027?

April Fools’ Day 2027 is on Thursday, April 1, 2027.

When is April Fools’ Day 2028?

April Fools’ Day 2028 is on Saturday, April 1, 2028.

How is the date of April Fools’ Day set?

April Fools’ Day is April 1 every year. Source: the rule written again in Python 3 (datetime).

How are the days until April Fools’ Day counted?

From the start date (today, unless you change it) to the date, without counting the start date. The day before, the count is 1; on the day itself, it is 0; the day after, the count moves on to the next April Fools’ Day.