What Day: May 31
Find the day of the week for any date of the year.
May 31 this year (2026) falls on a Sunday. It's day 151 of the year, with 214 days left afterward, sits in Q2 (Spring), and falls under the zodiac sign Gemini 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. May 31 will next fall on a Sunday again in 2037. Within May, this is day 31 of 31, roughly 100% through the month. Overall, that's roughly 41% of the way through the year.
As of October 1, 2026, 12:19 PM (America/New York).
A Decade Ago
May 31, 2016 fell on a Tuesday, 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 May 31 is November 28, which falls in fall and lands on a Saturday this year.