acalculator

Days until the 25th

The 25th comes once a month, in every month of the year. The count starts from today’s date; pick another date to count from it instead.

Your numbers

Days until the 25th
6

From October 19, 2026, there are 6 days until the 25th, Sunday, October 25, 2026.

Next 25th
Sunday, October 25, 2026
The 25th after
Wednesday, November 25, 2026

Answer for the example date Monday, October 19, 2026. It changes to today's date when the page loads.

Days until the 25th: 6. From October 19, 2026, there are 6 days until the 25th, Sunday, October 25, 2026.

Where is the next 25th?

How to calculate

Counts the days from today, or any date you choose, to the next 25th of a month, with its date and the 25th after it.

Example with the default inputs (Count from October 19, 2026) on the example date Monday, October 19, 2026: From October 19, 2026, there are 6 days until the 25th, Sunday, October 25, 2026.

Method: Find the first date on or after the start date that is the 25th of its month, then count the days from the start date to it.

  • On the 25th, the count is 0, and the 25th after is the 25th of the next month that has one.
  • Every month has a 25th, so the next one is never more than a month away.
  • The start date itself is not counted: from the day before, the count is 1.
  • Dates are calendar days with no time of day, so a time zone or a daylight-saving change never adds or loses a day.
  • Start dates from January 1, 1900 to December 31, 2400 work.

Machine-readable copies: Markdown, JSON.

Worked examples

Each example is checked against the calculator on every build.

  1. Count from 2026-10-19 gives Next 25th 2026-10-25, Days until the 25th 6, The 25th after 2026-11-25.Source: IETF RFC 3339, section 5.7 (days in each month) and Appendix C (the leap year rule) (https://www.rfc-editor.org/rfc/rfc3339)
  2. Count from 2026-12-31 gives Next 25th 2027-01-25, Days until the 25th 25, The 25th after 2027-02-25.Source: IETF RFC 3339, section 5.7 (days in each month) and Appendix C (the leap year rule) (https://www.rfc-editor.org/rfc/rfc3339)
  3. Count from 2027-02-01 gives Next 25th 2027-02-25, Days until the 25th 24, The 25th after 2027-03-25.Source: IETF RFC 3339, section 5.7 (days in each month) and Appendix C (the leap year rule) (https://www.rfc-editor.org/rfc/rfc3339)
  4. Count from 2028-02-15 gives Next 25th 2028-02-25, Days until the 25th 10, The 25th after 2028-03-25.Source: IETF RFC 3339, section 5.7 (days in each month) and Appendix C (the leap year rule) (https://www.rfc-editor.org/rfc/rfc3339)
  5. Count from 2027-01-25 gives Next 25th 2027-01-25, Days until the 25th 0, The 25th after 2027-02-25.Source: IETF RFC 3339, section 5.7 (days in each month) and Appendix C (the leap year rule) (https://www.rfc-editor.org/rfc/rfc3339)

Other questions people ask

How many days until the 25th?

It depends on the date, so the count above starts from today as your device shows it. From the 1st of a month that has a 25th, it is 24 days away; on the 25th itself the count is 0. Change “Count from” to count from another date.

What if today is the 25th?

Then the count is 0, because the next 25th on or after today is today itself. The page also shows the 25th after it, which is 28 to 31 days later.

Which months have a 25th?

All 12. Every month has at least 28 days, so every month has a 25th.

How many times does the 25th come in a year?

12, one in every month.

What day of the week will the 25th be?

It changes from month to month. A 31-day month moves the 25th 3 days later in the week, a 30-day month 2, a 29-day February 1, and a 28-day February 0. The page shows the weekday of the next 25th in its date.

How are the days until the 25th counted?

From the start date (today, unless you change it) to the next 25th, without counting the start date, in calendar days. Weekends and holidays count like any other day.