How many days are between New Year's Day and Memorial Day?

Q: How many days are between New Year's Day and Memorial Day?

150 days. New Year's Day falls on Friday, January 1, 2027 and Memorial Day on Monday, May 31, 2027, which is 150 days later — 21 weeks and 3 days, or 106 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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150 days

Days: 150
Weeks and days: 21 weeks, 3 days
Months and days: 4 months, 30 days
Business days (Mon–Fri): 106
Weekend days: 44
Resulting date: —
Day of the week: Friday → 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 January 1, 2027

After	Date	Falls on a
7 days	January 8, 2027	Friday
14 days	January 15, 2027	Friday
21 days	January 22, 2027	Friday
30 days	January 31, 2027	Sunday
45 days	February 15, 2027	Monday
60 days	March 2, 2027	Tuesday
90 days	April 1, 2027	Thursday
120 days	May 1, 2027	Saturday
180 days	June 30, 2027	Wednesday
365 days	January 1, 2028	Saturday

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 New Year's Day to Memorial Day in 2027

150 days

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

Days apart: 150
Business days: 106
Weekend days: 44
That is: 21 weeks and 3 days

New Year's Day falls on Friday, January 1, 2027 and Memorial Day on Monday, May 31, 2027, which is 150 days later — 21 weeks and 3 days, or 106 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	January 1, 2027 → May 31, 2027	150 days
2028	January 1, 2028 → May 29, 2028	149 days
2029	January 1, 2029 → May 28, 2029	147 days
2030	January 1, 2030 → May 27, 2030	146 days
2031	January 1, 2031 → May 26, 2031	145 days

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