How many days until September 20?

Your personal countdown to September 20.

Year

Moon on September 20, 2026

Waxing Gibbous

Illumination: 61% · phase waxing

This shows the Moon phase on “September 20” for the selected year — by default the nearest upcoming one. Pick another year with the selector above the timer and the phase updates: the ~29.5-day lunar cycle shifts it slightly from year to year.

Countdown to September 20

Our online timer shows exactly how much time is left until September 20, counting down the days, hours, minutes and seconds.

It doesn't matter if you are waiting for September 20 as your birthday, the start of a vacation, the date of an important event, or just out of interest — our counter will help you track the approach of this moment.

For maximum convenience, the timer can be expanded to the full screen, which is ideal for displaying on a large monitor while preparing or waiting.

Works for free and is available on any device

How many days until September 20 in the coming years

Use the year selector at the top of the timer to jump to any upcoming year and see exactly how many days, hours, minutes and seconds are left until September 20, along with the day of the week it falls on. The table below shows which weekday September 20 lands on in the coming years.

YearDay of the week
2026Sunday
2027Monday
2028Wednesday
2029Thursday
2030Friday
2031Saturday
2032Monday
2033Tuesday
2034Wednesday
2035Thursday
2036Saturday