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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 )

Daily Planning Alert - Moon Void of Course:

The Moon briefly pauses its journey before shifting into an innovative energy. This is a day for careful consideration and refinement of existing projects, rather than initiating brand new endeavors.With the Moon moving from pragmatic Capricorn to inventive Aquarius at , coupled with several planetary retrogrades, focus on reviewing financial strategies and refining long-term goals rather than making impulsive investments. The shift to Aquarius encourages intellectual discussions and connecting with like-minded individuals, benefiting relationships with air signs (Gemini, Libra, Aquarius) through shared ideas and innovative solutions. For romance, communicate openly and perhaps revisit past relationship lessons, while health-wise, listen to your body and adjust routines to support your well-being.

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

Major Sports Events on September 21, 2026

NFL

New York Giants AT Los Angeles Rams
Venue: SoFi Stadium

NHL

Philadelphia Flyers AT Washington Capitals
Venue: Capital One Arena
Colorado Avalanche AT Winnipeg Jets
Venue: Canada Life Centre

Top Investing, Business & Finance events on September 21

PRI Investor Day

MetLife Building, New York, NY

This premier gathering brings together global institutional investors to discuss the practical drivers of long-term financial performance through responsible investment. Participants focus on translating sustainability commitments into measurable actions within capital allocation and policy engagement.

Driving the Future of Climate Action

New York City, NY

Corporate sustainability leaders explore the latest innovations shaping the transition to a low-carbon economy through interactive panels and technology demonstrations. The event features a unique "climate time capsule" for predictions and a showcase of cutting-edge electric vehicle technology.

WRC Executive Roundtable

New York Stock Exchange, New York, NY

Top chief executives and industry leaders convene to address the urgent challenges of global water security and its impact on business resilience. The roundtable focuses on collaborative strategies to scale nature-based solutions and improve water management across global supply chains.

Advancing Energy Innovation for a Resilient Urban Future

The Brant, New York, NY

This gathering of climate tech innovators and policymakers highlights the breakthrough technologies necessary to modernize urban energy grids. It provides a platform for industry experts to foster partnerships aimed at delivering clean and equitable power solutions for major cities.

Top Health & Fitness events on September 21

UNGA Healing Arts Week

New York City, NY

This city-wide festival explores the powerful intersection of creative expression and public health through workshops, performances, and symposia. It serves as a major platform for health professionals and artists to advocate for integrating the arts into clinical care systems.

AHA Scientific Sessions Advance Registration Deadline

The final opportunity for medical professionals to secure discounted access to one of the world's most influential cardiovascular research conferences. This deadline is a critical milestone for thousands of doctors and researchers planning to share breakthrough heart health discoveries.

JA&HL-Lancet Collection Launch

Guggenheim Museum, New York, NY

The official release of a major scientific publication marks a historic collaboration between researchers and medical journals to prove the health benefits of arts engagement. The launch event features expert panel discussions on the role of culture in preventing chronic disease and improving mental well-being.

Top Politics & Government happenings on September 21

Devex Impact House @ UNGA 81

New York City, NY

A high-profile forum for development professionals and political leaders to discuss sustainable social impact on the sidelines of the UN General Assembly. The event focuses on reimagining international aid and fostering private-sector partnerships to solve global humanitarian crises.

SBA Small Business Size Standards Overhaul (Comment Deadline)

The deadline for public input on a massive restructuring of how the government defines small businesses, impacting billions in federal contracting eligibility. This regulatory change is expected to newly classify over 100,000 firms as small, significantly altering the competitive landscape for entrepreneurs.

BLM Utah Oil and Gas Lease Sale (Comment Deadline)

The final day for public feedback on the proposal to open tens of thousands of acres of federal land in Utah for energy development. This decision carries major implications for the balance between domestic energy production and environmental conservation in the American West.

VEVRAA Final Rule Implementation

New federal regulations go into effect that modify how government contractors must report and promote the employment of protected veterans. The update aims to align workplace jurisdictional thresholds with inflation and enhance transparency in affirmative action programs.

Top Entertainment & Live Events on September 21

The Voice Season 30 Premiere

Starts:

The milestone 30th season of the Emmy-winning singing competition kicks off with returning fan-favorite coaches and a new batch of undiscovered talent. This premiere event anchors the network's fall schedule and remains a significant driver of national social media conversation.

Line of Fire Series Premiere

Starts:

A new high-stakes thriller series follows a family of law enforcement agents entangled in a deadly conspiracy across multiple federal agencies. The drama promises a gritty look at the intersection of public duty and private secrets in the modern security landscape.

Rod Wave: Don't Look Down Tour

Toyota Center, Houston, TX

The chart-topping artist brings his soulful blend of hip-hop and R&B to a sold-out arena as part of a massive national tour. Fans gather for an emotional performance featuring the rapper's biggest hits and latest melodic storytelling.

Climate Week NYC 2026 Opening Ceremony

The Hub Live, New York, NY

Global dignitaries and activists launch one of the world's largest climate platforms to catalyze collective action on environmental protection. The ceremony sets the tone for a week of high-level negotiations and public awareness campaigns aimed at global sustainability goals.

The Paper Season 2 Debut

The popular mockumentary returns to a regional newsroom, offering a satirical look at the chaotic personal and professional lives of its staff. This season explores the modern media landscape with the same cringe-inducing humor that made its debut a streaming hit.

Top Conventions & Other Happenings on September 21

Climate Week NYC 2026 (day 2 of 8)

Various Venues, New York City, NY

Held in conjunction with the United Nations General Assembly, this is the largest annual climate event of its kind and serves as a global platform for major policy and environmental announcements. The week brings together heads of state, corporate CEOs, and influential activists to accelerate the transition to a low-carbon economy through hundreds of events across the city.

41st IBEW International Convention (day 1 of 5)

San Diego Convention Center, San Diego, CA

This massive quadrennial gathering represents the highest governing body of the International Brotherhood of Electrical Workers, bringing together thousands of delegates from across North America to set the union's future policies. It is a major focal point for the energy and construction sectors and frequently features addresses from top-tier national political leaders and industry executives.

CAMX – The Composites and Advanced Materials Expo (day 1 of 4)

Georgia World Congress Center, Atlanta, GA

As the largest composites and advanced materials event in North America, this expo is the primary hub for the aerospace, automotive, and marine industries to discover cutting-edge manufacturing solutions. It is widely covered for its role in debuting next-generation materials that are essential for future sustainability and high-performance engineering projects.

TDWI Transform 2026 (day 2 of 6)

Anaheim, CA

This premier professional conference focuses on the rapidly evolving fields of artificial intelligence, big data, and analytics for enterprise-level decision-makers. It has gained immense popularity for its hands-on masterclasses and leadership summits that define the strategic implementation of AI and data governance for major global corporations.

FFVA 2026 - Florida Fruit & Vegetable Association Convention (day 1 of 3)

The Ritz-Carlton, Naples, FL

This convention serves as one of the most influential gatherings for the American agricultural industry, focusing on the future of food supply chains, labor relations, and crop sustainability. It is a critical networking point for large-scale producers and government officials to discuss legislative impacts on the national food market.

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