September 15, 2027 350 days from todayWhat day of the week is September 15, 2027?
Calendar position
Wednesday, September 15, 2027 falls on a Wednesday. It is day 258 of 365 in 2027, in ISO week 37, in quarter 3 and in autumn in the northern hemisphere. The date is 350 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. September 15 falls on these weekdays over the next five years: 2028: Friday, 2029: Saturday, 2030: Sunday, 2031: Monday, 2032: Wednesday. Looking back, it fell on: 2026: Tuesday, 2025: Monday. The weekday moves forward by one each year, and by two after a leap day, which is why anniversaries and birthdays shift through the week. On September 15, 2027 the moon is a Full Moon with about 100% of its disc lit, roughly 14.8 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. 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. Today is Wednesday, September 30, 2026. That is day 273 of 365 in 2026, in ISO week 40, with 92 days to go before the year ends. The next dates people plan around are Diwali on Saturday, October 10; Columbus Day on Monday, October 12; Halloween on Saturday, October 31. The moon is a Waning Gibbous tonight, with about 81% of its face lit. All of these figures are recalculated when the page loads, so they always describe the day you open it, not the day the page was published. The Gregorian calendar has twelve months of 28 to 31 days. A normal year has 365 days and a leap year has 366, with the extra day added to February in every year divisible by four except century years that are not divisible by 400. Because 365 is one more than 52 weeks, most dates move forward one weekday each year and two after a leap day. Weeks are numbered under ISO 8601, which starts weeks on Monday and gives week 1 to the week containing the first Thursday of January.The answer in detail
September 15 in other years
The moon and the calendar
How weekday lookups work
Today's date at a glance
How the calendar works
It is a Wednesday. Day 258 of 365. Week 37 of 2027. Quarter 3 of 2027. No, it is a weekday (Wednesday). No. 350 days from today. Full Moon, about 100% illuminated. Friday. Tuesday. Wednesday. It is not one of the major holidays tracked here. Autumn in the northern hemisphere. Yes. Enter it in the form above.Frequently asked questions
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