What day of the week is December 15, 2027?

Wednesday

December 15, 2027

435 days from today

Calendar position

Wednesdayday of the week
349day of the year
W50ISO week
Q4quarter
Weekdaytype of day
435days from today
Waning Gibbousmoon phase
Commonyear type

The answer in detail

Wednesday, December 15, 2027 falls on a Wednesday. It is day 349 of 365 in 2027, in ISO week 50, in quarter 4 and in winter in the northern hemisphere. The date is 435 days from today, and it is a weekday, so offices and schools are normally open. It does not coincide with any of the major holidays tracked on this site that year.

The moon and the calendar

On December 15, 2027 the moon is a Waning Gibbous with about 93% of its disc lit, roughly 17.4 days after the previous new moon. That figure is computed from lunar phase formulas, not looked up, so it is available for any year in the range.

How weekday lookups work

The weekday of a date is found by counting the days from a known reference date and taking the remainder after dividing by seven. The calculator applies that rule to real Gregorian dates, including leap days, which is why it works equally well for a birth date in 1985 and a wedding date in 2032. Use the form above to check any other date, or open the neighbouring dates linked below.

Frequently asked questions

What day of the week is December 15, 2027?

It is a Wednesday.

What day of the year is December 15, 2027?

Day 349 of 365.

What ISO week is it?

Week 50 of 2027.

Which quarter is it in?

Quarter 4 of 2027.

Is it a weekend?

No, it is a weekday (Wednesday).

Is 2027 a leap year?

No.

How far away is the date?

435 days from today.

What is the moon phase on that date?

Waning Gibbous, about 93% illuminated.

RESULT & PLANNING

Use this calculation

What Day of the Week Is December 15, 2027?: Wednesday December 15, 2027 — 435 days from today

How this calculation was worked out

The result uses the exact inputs on this page and calendar/time arithmetic appropriate to this calculator. The result shown above is the value to use for this calculation.

Working days and weekends

435Calendar days
311Weekdays
62Saturdays
62Sundays
Not included unless this calculator says otherwisePublic holidays

Practical planning milestones

  1. Calculated dateWednesday, December 15, 2027

Accuracy and limitations

  • The result uses the calendar rules and time zone shown on this page.
  • Leap years and actual month lengths are handled by the calendar arithmetic where they affect the calculation.

Save or share this result

Calculation history

Machine-readable result
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