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September 21, 2026 calendar
21

is ...

  • 264th day of the year. There are then 101 days left in 2026.
  • 38th Monday of 2026.
  • on the 39th week of 2026 (using US standard week number calculation).
  • 93rd day of Summer. There are 2 days left till Fall.
  • Birthstone for this day: Sapphire

Zodiac & Astrology for September 21 2026

Sun / Zodiac Sign:

Virgo

Moon Phase:

Waxing Gibbous
76% Illuminatedi

Moon Sign:

Capricorn ➔ Aquarius (at )

September 21, 2026 United States Holidays & Popular Observances

September 21, 2026 Popular Holidays & Observances Worldwide

  • International Day of Peace - Popular in:
  • Yom Kippur -
  • Saint Matthew - Popular in: United States, New Zealand, Canada, Australia
  • World Alzheimer's Day - Popular in: United Kingdom, Chile, Spain, Mexico, Peru
  • Bettagsmontag - Switzerland
  • Federal Fast (Eidgenössische Danktag, Busstag und Bettag - Beobachten) - Switzerland
  • Independence Day (Jum l-Indipendenza) - Popular in: Malta
  • Lobster festival (Hummerpremiär) - Sweden
  • Dia da Árvore - Brazil
  • Día del Estudiante - Argentina
  • Ramdev Jayanti - India

Top Investing, Business & Finance events on September 21

New York Stock Exchange Opening Bell

This ceremony marks the start of the trading session for major global equities and serves as a key moment for market sentiment. It is a critical touchstone for investors tracking the first full day of economic activity for the business week.

United States Treasury Bill Auctions

The sale of short-term government debt instruments helps determine the prevailing interest rates used by financial institutions and individual investors. These auctions are essential for understanding government borrowing needs and the current health of the credit market.

Top Health & Fitness events on September 21

Peloton Live Monday Motivation Classes

Instructors lead synchronized high-intensity workouts that allow thousands of participants to exercise together through a connected digital platform. These sessions foster a sense of community and help users establish a consistent wellness routine for the week ahead.

Apple Fitness+ Weekly Workout Release

A new collection of guided exercise modules and training content is made available to help users maintain their physical health and mindfulness goals. The release provides fresh instructional material across various disciplines, ranging from yoga to strength training.

Top Politics & Government happenings on September 21

United Nations General Assembly High-Level Meetings

New York City, NY

Heads of state and government officials gather to coordinate responses to international security threats and humanitarian crises. This annual assembly serves as the world's premier forum for diplomatic negotiation and multilateral policy-making.

2026 Midterm Election Campaign Rallies

United States

Candidates for federal office hold large-scale public events to present their platforms and mobilize voters ahead of the upcoming legislative elections. These gatherings are a central component of the democratic process and drive significant national news coverage and political discourse.

The View

A panel of co-hosts discusses the most pressing political headlines and social issues with high-profile guest speakers. The program is a major driver of daily social media trends and helps shape public opinion on current events.

Top Entertainment & Live Events on September 21

The Voice Season Premiere

A new season of the singing competition begins with celebrity coaches evaluating undiscovered talent during highly anticipated blind auditions. The show is a staple of fall television programming and generates significant search volume for its musical performances.

Dancing with the Stars Season Premiere

Public figures from various industries compete in a live ballroom dance tournament judged by experts and the viewing audience. The interactive format and celebrity casting make it one of the most talked-about reality competitions of the year.

The Today Show

This long-running morning program provides a comprehensive look at breaking news, lifestyle trends, and celebrity interviews for a national audience. It serves as a foundational source of information and entertainment for many Americans starting their daily routines.

Top Conventions & Other Happenings on September 21

Climate Week NYC (day 2 of 8)

Various Locations, New York City

This massive summit brings together influential business leaders, policymakers, and activists to drive global climate action through more than 1,000 scheduled events and panels. It garners immense social media traction and news coverage as celebrities and world leaders gather to discuss sustainable solutions and corporate environmental responsibility.

UN General Assembly High-Level Week (day 1 of 5)

UN Headquarters, NYC

While the formal General Debate begins the following day, this date serves as the peak for high-level summits and side conventions involving heads of state and global NGOs. The concentrated presence of international dignitaries and the resulting security measures make it a focal point for worldwide news cycles and public demonstrations.

BWI Expo (day 1 of 3)

Music City Center, Nashville, TN

As one of the largest trade shows for the lawn, garden, and nursery industries, this event connects hundreds of manufacturers with independent retailers and professional distributors. It is popular for showcasing the latest innovations in horticultural technology and organic gardening products ahead of the spring buying season.

TDWI Transform (day 1 of 3)

Anaheim, CA

This premier data and AI conference provides deep-dive sessions for professionals focused on analytics, data warehousing, and the practical implementation of machine learning. It attracts significant industry interest as a leading venue for enterprise-level technology strategy and digital transformation networking.

FFVA Annual Convention (day 1 of 3)

The Ritz-Carlton, Naples, FL

Organized by the Florida Fruit and Vegetable Association, this convention is a critical gathering for the multi-billion dollar specialty crop industry to address labor, trade, and legislative issues. It is a vital event for agricultural stakeholders and results in significant regional economic and policy-related news coverage.

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