Days until the 20th
The 20th 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.
- Days until the 20th
- 1
From October 19, 2026, there is 1 day until the 20th, Tuesday, October 20, 2026.
- Next 20th
- Tuesday, October 20, 2026
- The 20th after
- Friday, November 20, 2026
Answer for the example date Monday, October 19, 2026. It changes to today's date when the page loads.
Days until the 20th: 1. From October 19, 2026, there is 1 day until the 20th, Tuesday, October 20, 2026.
Where is the next 20th?
How to calculate
Counts the days from today, or any date you choose, to the next 20th of a month, with its date and the 20th 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 is 1 day until the 20th, Tuesday, October 20, 2026.
Method: Find the first date on or after the start date that is the 20th of its month, then count the days from the start date to it.
- On the 20th, the count is 0, and the 20th after is the 20th of the next month that has one.
- Every month has a 20th, 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.
Worked examples
Each example is checked against the calculator on every build.
- Count from 2026-10-19 gives Next 20th 2026-10-20, Days until the 20th 1, The 20th after 2026-11-20.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)
- Count from 2026-12-31 gives Next 20th 2027-01-20, Days until the 20th 20, The 20th after 2027-02-20.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)
- Count from 2027-02-01 gives Next 20th 2027-02-20, Days until the 20th 19, The 20th after 2027-03-20.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)
- Count from 2028-02-15 gives Next 20th 2028-02-20, Days until the 20th 5, The 20th after 2028-03-20.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)
- Count from 2027-01-20 gives Next 20th 2027-01-20, Days until the 20th 0, The 20th after 2027-02-20.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 20th?
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 20th, it is 19 days away; on the 20th itself the count is 0. Change “Count from” to count from another date.
What if today is the 20th?
Then the count is 0, because the next 20th on or after today is today itself. The page also shows the 20th after it, which is 28 to 31 days later.
Which months have a 20th?
All 12. Every month has at least 28 days, so every month has a 20th.
How many times does the 20th come in a year?
12, one in every month.
What day of the week will the 20th be?
It changes from month to month. A 31-day month moves the 20th 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 20th in its date.
How are the days until the 20th counted?
From the start date (today, unless you change it) to the next 20th, without counting the start date, in calendar days. Weekends and holidays count like any other day.