How many days are between Memorial Day and Columbus Day?

Q: How many days are between Memorial Day and Columbus Day?

133 days. Memorial Day falls on Monday, May 31, 2027 and Columbus Day on Monday, October 11, 2027, which is 133 days later — 19 weeks, or 95 business days counting Monday to Friday only. The first day is not counted and the last one is, the same way a calendar counts a stay. One of these two moves around the calendar, so the gap is not the same every year — the table below gives the next five.

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Result

133 days

Days: 133
Weeks and days: 19 weeks, 0 days
Months and days: 4 months, 11 days
Business days (Mon–Fri): 95
Weekend days: 38
Resulting date: —
Day of the week: Monday → Monday

Assumptions

Dates are local calendar dates; times and time zones are ignored.
Business days are Monday–Friday with no holiday exclusions.
Adding months keeps the day of month, clamped to the target month's length.

Common deadlines from May 31, 2027

After	Date	Falls on a
7 days	June 7, 2027	Monday
14 days	June 14, 2027	Monday
21 days	June 21, 2027	Monday
30 days	June 30, 2027	Wednesday
45 days	July 15, 2027	Thursday
60 days	July 30, 2027	Friday
90 days	August 29, 2027	Sunday
120 days	September 28, 2027	Tuesday
180 days	November 27, 2027	Saturday
365 days	May 30, 2028	Tuesday

Calendar days counted from the start date, the day itself not counted. Deadlines written as 'within 90 days' are calendar days unless the contract or court rule says business days.

From Memorial Day to Columbus Day in 2027

133 days

Counted from Thursday, September 17, 2026. The dates shown are the next ones to come round.

Days apart: 133
Business days: 95
Weekend days: 38
That is: 19 weeks

Memorial Day falls on Monday, May 31, 2027 and Columbus Day on Monday, October 11, 2027, which is 133 days later — 19 weeks, or 95 business days counting Monday to Friday only. The first day is not counted and the last one is, the same way a calendar counts a stay. One of these two moves around the calendar, so the gap is not the same every year — the table below gives the next five.

The next five years

Year	Dates	Days apart
2027	May 31, 2027 → October 11, 2027	133 days
2028	May 29, 2028 → October 9, 2028	133 days
2029	May 28, 2029 → October 8, 2029	133 days
2030	May 27, 2030 → October 14, 2030	140 days
2031	May 26, 2031 → October 13, 2031	140 days

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