How many seconds until Fall (September Equinox) 2029?

Fall (September Equinox) in plain numbers

As of Thursday, October 1, 2026, Fall (September Equinox) is 1,087 days away. Put another way, that is 155 full weeks and 2 extra days, about 35 calendar months, or 26,088 hours if you count from midnight. The date lands on a Saturday, in ISO week 38 of 2029, and it is day 265 of 365 in that year.

This page is not a snapshot. The figures are recalculated every time it loads, using the Asia/Karachi time zone, so tomorrow the count will be one day smaller. If you bookmark the page you will always see the current gap rather than the number that was true on the day you saved it, and nobody has to edit anything for that to stay correct.

Planning around the date

For work and school planning the useful numbers are working days and weekends. Between today and Fall (September Equinox) there are 776 weekdays (Monday to Friday), 156 Saturdays and 155 Sundays. Take out public holidays in your region and you have a realistic count of working days left. If you are paid every two weeks, expect about 77 paydays before then, and about 155 if you are paid weekly.

Some people prefer to break a long wait into stages. The quarter mark of the range is Tuesday, June 29, 2027, the halfway point is Monday, March 27, 2028, and the three-quarter mark is Sunday, December 24, 2028. By the time Fall (September Equinox) arrives, 72.6% of 2029 will have gone by. There are 156 Fridays in the range, which is handy if your deadlines or deliveries land at the end of the week.

About Fall (September Equinox)

The September equinox, the astronomical start of Northern Hemisphere autumn, computed each year from the sun's position. Fall (September Equinox) marks an astronomical turning point in the year, which is why it is used to mark the start of a season in almanacs even though meteorologists count seasons by whole months.

Fall (September Equinox) is the moment the sun reaches a particular longitude in its apparent path, calculated astronomically for each year. The date can shift by a day between years because the tropical year is not a whole number of days.

Fall (September Equinox) in other years

In the coming years Fall (September Equinox) falls on: Monday, September 23, 2030 (1,453 days from today); Tuesday, September 23, 2031 (1,818 days from today); Wednesday, September 22, 2032 (2,183 days from today); Thursday, September 22, 2033 (2,548 days from today). Last year it fell on Friday, September 22, 2028. Comparing the weekdays shows how the holiday drifts through the week, which matters when you plan long weekends, school breaks and travel that depends on which day of the week it lands.

What comes next

The next major date after Fall (September Equinox) is Halloween on Wednesday, October 31, 2029, 39 days later. If you are planning a stretch of several weeks, it helps to know where the next break or deadline falls so you can space out your commitments.

Using this second counter

Seconds are counted from this moment to midnight at the start of the target date in this site's time zone, and the figure ticks every second while the page is open. It is a fun view for a holiday or a birthday, since a day is 86,400 seconds and a week is 604,800.