What Day: September 18
Find the day of the week for any date of the year.
September 18 this year (2026) falls on a Friday. It's day 261 of the year, with 104 days left afterward, sits in Q3 (Fall), and falls under the zodiac sign Virgo in Western astrology. Because of how leap years shift the calendar, a date's day-of-week doesn't repeat on a fixed yearly schedule. September 18 will next fall on a Friday again in 2037. Within September, this is day 18 of 30, roughly 60% through the month. Overall, that's roughly 72% of the way through the year.
As of October 1, 2026, 12:19 PM (America/New York).
A Decade Ago
September 18, 2016 fell on a Sunday, a useful reference point if you're comparing how a recurring event has shifted across the week over the years.
Half a Year Away
Roughly six months from September 18 is March 18, which falls in spring and lands on a Wednesday this year.
Nearby Dates
Check the day of the week for the date just before or after September 18 using the links below.