International observance
How Many Days Until World AIDS Day 2026?
Today: · Eastern Time (America/New_York)
Calendar days until World AIDS Day
38 days until World AIDS Day
World AIDS Day is on Tuesday, December 1, 2026.
Live countdown to midnight on December 1, 2026
37 days, 18 hours, 28 minutes, 46 seconds remaining
Eastern Time (America/New_York). Countdown days are 24 hours; the calendar-day count above uses local dates.
- Calendar days (signed)
- 38
- Full weeks + days
- 5 weeks + 3 days
- Calendar months + days
- 1 month + 7 days
- Years, months, days
- 0 years, 1 month, 7 days
- Weekdays counted
- 27
- Weekend days counted
- 11
- U.S. business days
- 25
- Observed holiday dates skipped
- 2
What is World AIDS Day?
World AIDS Day, December 1, unites people in the fight against HIV, shows support for people living with HIV and remembers those who have died of AIDS-related illnesses.
History of World AIDS Day
First held in 1988, it was the first global health day. Since the epidemic began, AIDS-related illnesses have claimed more than 40 million lives, and about 40 million people live with HIV today. Treatment now lets people with HIV live long, healthy lives.
World AIDS Day today
People wear the red ribbon, communities hold vigils and testing drives, and UNAIDS and the World Health Organization publish a theme and new data.
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: World Health Organization
Event date facts
- Weekday
- Tuesday
- ISO week / year
- 49 / 2026
- Day of year
- 335
- Quarter
- 4
- Days left in year
- 30
- Leap year
- No
December 2026
| Mon | Tue | Wed | Thu | Fri | Sat | Sun |
|---|---|---|---|---|---|---|
| Target | ||||||
Event dates by year
| Rule year | Actual date | Observed federal closure | Certainty |
|---|---|---|---|
| 2025 | Monday, December 1, 2025 | — | Same date every year |
| 2026 | Tuesday, December 1, 2026 | — | Same date every year |
| 2027 | Wednesday, December 1, 2027 | — | Same date every year |
| 2028 | Friday, December 1, 2028 | — | Same date every year |
| 2029 | Saturday, December 1, 2029 | — | Same date every year |
Quick answers
- What day of the week is December 1, 2026?
- December 1, 2026 is a Tuesday.
- Is World AIDS Day a federal holiday?
- No. World AIDS Day is not a U.S. federal holiday, so federal offices and most businesses stay open.
- What week of the year is December 1, 2026?
- December 1, 2026 is in ISO week 49 of 2026 and is day 335 of the year.
How the World AIDS Day date is calculated
- World AIDS Day is on December 1 every year. In 2026 that is a Tuesday.
- The countdown counts calendar days from today to December 1, 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 December 1, 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 6:31 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.