May 3 Holidays & Observances
1 holiday observed on May 3 in the 2026–2030 window.
Floating holidays on May 3
These observances only land on May 3 in certain years.
| Holiday | 2026 | 2027 | 2028 | 2029 | 2030 |
|---|---|---|---|---|---|
| National Space Day | — | — | — | — | May 3 · Fri |
View all May holidays
See every observance across May in one monthly calendar.
May calendar →May 3 — quick answers
- How many holidays fall on May 3?
- In the 2026–2030 window, 1 holiday and observance falls on May 3: National Space Day.
- What is celebrated on May 3?
- May 3 is home to National Space Day. Each one has its own page with history and a live countdown.
- Are any May 3 holidays public holidays?
- None of the observances on May 3 are US federal holidays; they are celebrated informally by people, brands and communities.