What Day: August 21
Find the day of the week for any date of the year.
August 21 this year (2026) falls on a Friday. It's day 233 of the year, with 132 days left afterward, sits in Q3 (Summer), and falls under the zodiac sign Leo 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. August 21 will next fall on a Friday again in 2037. Within August, this is day 21 of 31, roughly 68% through the month. Overall, that's roughly 64% of the way through the year.
As of October 1, 2026, 12:19 PM (America/New York).
A Decade Ago
August 21, 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 August 21 is February 21, which falls in winter and lands on a Saturday this year.