What Day: December 18
Find the day of the week for any date of the year.
December 18 this year (2026) falls on a Friday. It's day 352 of the year, with 13 days left afterward, sits in Q4 (Winter), and falls under the zodiac sign Sagittarius 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. December 18 will next fall on a Friday again in 2037. Within December, this is day 18 of 31, roughly 58% through the month. Overall, that's roughly 96% of the way through the year.
As of October 1, 2026, 12:19 PM (America/New York).
A Decade Ago
December 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 December 18 is June 18, which falls in summer and lands on a Thursday this year.
Nearby Dates
Check the day of the week for the date just before or after December 18 using the links below.