May 16 Holidays & Observances
4 holidays observed on May 16 in the 2026–2030 window.
Floating holidays on May 16
These observances only land on May 16 in certain years.
| Holiday | 2026 | 2027 | 2028 | 2029 | 2030 |
|---|---|---|---|---|---|
| Pentecost | — | May 16 · Sun | — | — | — |
| Armed Forces Day | May 16 · Sat | — | — | — | — |
View all May holidays
See every observance across May in one monthly calendar.
May calendar →May 16 — quick answers
- How many holidays fall on May 16?
- In the 2026–2030 window, 4 holidays and observance fall on May 16: Pentecost, Armed Forces Day, International Day of Light, National Mimosa Day.
- What is celebrated on May 16?
- May 16 is home to Pentecost, Armed Forces Day, International Day of Light and other observances. Each one has its own page with history and a live countdown.
- Are any May 16 holidays public holidays?
- None of the observances on May 16 are US federal holidays; they are celebrated informally by people, brands and communities.