How many days are in March?

Q: How many days are in March?

31 days. March 2026 runs from Sunday, March 1, 2026 to Tuesday, March 31, 2026: 31 days in all, 22 of them weekdays and 9 weekend days. No federal holiday falls inside it, so every weekday is a working day. Both end days are counted, which is how a calendar counts a month rather than how a date difference counts one. Business days here are Monday to Friday; federal holidays are listed separately because private employers do not all take the same ones.

March 2026 has

31 days

Counted from Thursday, September 10, 2026. The figures are for March 2026; the table below carries them forward.

Days: 31
Weekdays: 22
Weekend days: 9
That is: 4 weeks and 3 days

March 2026 runs from Sunday, March 1, 2026 to Tuesday, March 31, 2026: 31 days in all, 22 of them weekdays and 9 weekend days. No federal holiday falls inside it, so every weekday is a working day. Both end days are counted, which is how a calendar counts a month rather than how a date difference counts one. Business days here are Monday to Friday; federal holidays are listed separately because private employers do not all take the same ones.

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Result

31 days

Days: 31
Weeks and days: 4 weeks, 3 days
Months and days: 0 months, 30 days
Business days (Mon–Fri): 22Weekdays only; public holidays are not excluded.
Weekend days: 9
Resulting date: —
Day of the week: Sunday → Tuesday

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 March 1, 2026

After	Date	Falls on a
7 days	March 8, 2026	Sunday
14 days	March 15, 2026	Sunday
21 days	March 22, 2026	Sunday
30 days	March 31, 2026	Tuesday
45 days	April 15, 2026	Wednesday
60 days	April 30, 2026	Thursday
90 days	May 30, 2026	Saturday
120 days	June 29, 2026	Monday
180 days	August 28, 2026	Friday
365 days	March 1, 2027	Monday

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.

March in the next five years

Year	Days	Business days
March 2026	31 days	22 weekdays, 22 working
March 2027	31 days	23 weekdays, 23 working
March 2028	31 days	23 weekdays, 23 working
March 2029	31 days	22 weekdays, 22 working
March 2030	31 days	21 weekdays, 21 working

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