Days until September 29
September 29 falls on a Tuesday in 2026 and a Wednesday in 2027. The count runs from today’s date on your device to the next September 29; pick another date to count from it instead.
- Days until September 29
- 364
From September 30, 2026, there are 364 days until September 29 on Wednesday, September 29, 2027.
- Date
- Wednesday, September 29, 2027
- Day of the week
- Wednesday
- In weeks
- 52 weeks
Answer for the example date Wednesday, September 30, 2026. It changes to today's date when the page loads.
Days until September 29: 364. From September 30, 2026, there are 364 days until September 29 on Wednesday, September 29, 2027.
Where is September 29 on the calendar?
How to calculate
Counts the days from today, or any date you choose, to the next September 29, with its day of the week.
Example with the default inputs (Count from September 30, 2026) on the example date Wednesday, September 30, 2026: From September 30, 2026, there are 364 days until September 29 on Wednesday, September 29, 2027.
Method: Find the first September 29 on or after the start date, then count the days from the start date to it.
- September 29 comes every year, so the count is never more than 365 days.
- The start date itself is not counted: from the day before September 29, the count is 1; on September 29 itself, it is 0.
- Start dates from January 1, 1900 to December 31, 2400 work for the count to September 29, the range the date field accepts.
- Today is the date on your own device, so the count to September 29 changes at midnight where you are. Dates are whole calendar days, so a daylight-saving change never adds or loses a day.
Worked examples
Each example is checked against the calculator on every build.
- Count from 2027-09-29 gives Date 2027-09-29, Days until September 29 0.Source: U.S. Naval Observatory, Leap Years: the Gregorian leap year rule (https://aa.usno.navy.mil/faq/leap_years)
- Count from 2027-01-01 gives Date 2027-09-29, Days until September 29 271.Source: U.S. Naval Observatory, Leap Years: the Gregorian leap year rule (https://aa.usno.navy.mil/faq/leap_years)
- Count from 2027-09-30 gives Date 2028-09-29, Days until September 29 365.Source: U.S. Naval Observatory, Leap Years: the Gregorian leap year rule (https://aa.usno.navy.mil/faq/leap_years)
Other questions people ask
What day of the week is September 29?
Tuesday, September 29, 2026; Wednesday, September 29, 2027; Friday, September 29, 2028. The weekday of September 29 moves on one day a year, or two when a February 29 falls between.
What day of the year is September 29?
September 29 is day 272 of a common year and day 273 of a leap year, such as 2028. Either way, 93 days of the year come after it.
What season is September 29 in?
In the Northern Hemisphere, September 29 is in fall in every year from 2026 to 2035; in the Southern Hemisphere, it is spring. Seasons here start on the astronomical equinoxes and solstices, dated in US Eastern Time.
Is September 29 a US federal holiday?
No. No US federal holiday falls on September 29. The next one in the calendar after September 29 is Columbus Day, which falls between October 8 and October 14.
How are the days until September 29 counted?
From the start date to September 29, without counting the start date: from September 28 the count is 1, and on September 29 it is 0. The day after, it moves on to the next September 29: from September 30, 2026, that is September 29, 2027, 364 days away.