International observance
How Many Days Until World Science Day 2026?
Today: · Eastern Time (America/New_York)
Calendar days until World Science Day
17 days until World Science Day
World Science Day for Peace and Development is on Tuesday, November 10, 2026.
Live countdown to midnight on November 10, 2026
16 days, 18 hours, 31 minutes, 14 seconds remaining
Eastern Time (America/New_York). Countdown days are 24 hours; the calendar-day count above uses local dates.
- Calendar days (signed)
- 17
- Full weeks + days
- 2 weeks + 3 days
- Calendar months + days
- 0 months + 17 days
- Years, months, days
- 0 years, 0 months, 17 days
- Weekdays counted
- 12
- Weekend days counted
- 5
- U.S. business days
- 12
- Observed holiday dates skipped
- 0
What is World Science Day?
World Science Day for Peace and Development, November 10, highlights the role of science in society and the importance of engaging the public in scientific issues.
History of World Science Day
UNESCO proclaimed the day in 2001, following the 1999 World Conference on Science in Budapest, and it was first celebrated in 2002.
World Science Day today
Universities, research institutes and schools hold open days, lectures and science fairs, and UNESCO focuses on a theme such as climate or open science.
Date details
- Category
- International observance
- How the date is set
- Same date every year
- Country / region
- General calendar event
- Actual event date
International observance; not a country-specific public-holiday closure.
Source: UNESCO
Event date facts
- Weekday
- Tuesday
- ISO week / year
- 46 / 2026
- Day of year
- 314
- Quarter
- 4
- Days left in year
- 51
- Leap year
- No
November 2026
| Mon | Tue | Wed | Thu | Fri | Sat | Sun |
|---|---|---|---|---|---|---|
| Target | ||||||
Event dates by year
| Rule year | Actual date | Observed federal closure | Certainty |
|---|---|---|---|
| 2025 | Monday, November 10, 2025 | — | Same date every year |
| 2026 | Tuesday, November 10, 2026 | — | Same date every year |
| 2027 | Wednesday, November 10, 2027 | — | Same date every year |
| 2028 | Friday, November 10, 2028 | — | Same date every year |
| 2029 | Saturday, November 10, 2029 | — | Same date every year |
Quick answers
- What day of the week is November 10, 2026?
- November 10, 2026 is a Tuesday.
- Is World Science Day a federal holiday?
- No. World Science Day for Peace and Development is not a U.S. federal holiday, so federal offices and most businesses stay open.
- What week of the year is November 10, 2026?
- November 10, 2026 is in ISO week 46 of 2026 and is day 314 of the year.
How the World Science Day date is calculated
- World Science Day is on November 10 every year. In 2026 that is a Tuesday.
- The countdown counts calendar days from today to November 10, 2026. The start date is excluded and the end date is included. Dates use Eastern Time (America/New_York).
- The live countdown runs to midnight at the start of November 10, 2026 in Eastern Time (America/New_York). A countdown day is 24 hours, so a daylight-saving change can make it differ from the calendar-day count by an hour.
- Calculated at 6:28 AM on October 24, 2026.
- U.S. business days exclude Saturday, Sunday and observed nationwide federal closures; individual employer and state schedules are not included.