How Many Days Until Mother's Day 2027?

Mother's Day 2027 is Sunday, 9 May 2027

There are 263 days between 19 August 2026 and Mother's Day 2027, which falls on Sunday, 9 May 2027. That is 37 weeks and 4 days, or 179 working days once Saturdays, Sundays and the US federal holidays in between are taken out — the figure that matters if you are counting delivery lead time or a work schedule rather than sleeps. The date is 2027-05-09 in ISO form and 5/9/2027 in the US format, it falls in ISO week 18 of 2027, and it is day 129 of 365.

How the date of Mother's Day is decided

The second Sunday in May in the United States, so it falls between 8 and 14 May. Other countries use different dates entirely — the United Kingdom's Mothering Sunday is in March.

That makes it a floating date: it is pinned to a weekday rather than to a day number, so it is always a Sunday but the date moves. In 2027 that is 9 May.

Mother's Day is an observance rather than a federal holiday. Offices, banks and schools stay open unless an individual employer chooses otherwise, and it counts as an ordinary business day in every calculator here. Only the eleven federal holidays are treated as non-working days — the list and the reasoning are on the holiday sources page.

Mother's Day in the years after 2027

The weekday never changes; only the date does, inside the May window the rule allows.

Every convention used above — whether the start date counts, how month ends are clamped, which holidays close an office — is written out on the methodology page, including how we count the 179 working days above.