The 2027 ERG Observance and Heritage Month Calendar

The busiest day on your 2027 calendar is Monday, October 11. Yom Kippur ends at nightfall, Canada celebrates Thanksgiving, the US marks Columbus Day and Indigenous Peoples' Day, and it is also National Coming Out Day.

Quick answer: The 2027 ERG observance calendar lists the heritage months, holidays, and awareness days ERG leaders use to plan programming. Key dates include Black History Month in February, Ramadan starting around February 8, Pride Month in June, Hispanic Heritage Month from September 15 to October 15, and Diwali on October 29.

How should you use this 2027 observance calendar?

This calendar is organized month by month, with North American observances first and UK observances second. Bookmark it and come back 60 to 90 days before each month, because that is when planning decisions actually get made.

This calendar works for any employee-led group, whether your company calls them employee resource groups (ERGs), business resource groups (BRGs), affinity groups, employee networks, or employee communities. Many teams know this as a diversity or cultural observances calendar.

Each month includes a table of North American dates (United States, Canada, and Mexico where relevant), a table of UK dates, and a short note on what to start planning next. In the UK, these groups are more often called staff networks or employee networks. Dates marked "sundown" begin the evening before the listed day ends.

Some dates are marked "expected" because they follow the lunar calendar and are confirmed usually a day or two in advance. Some observances are federal or statutory holidays, while others are commemorative months recognized by governments or led by communities, and recognition can change from year to year.

Why do most ERG observance calendars fall short?

Most observance calendars are evergreen lists that tell you what exists, not when it lands this year or what it shares a date with.

Picture an ERG leader who books a lunch-and-learn for the second week of February, only to realize many colleagues will be fasting for Ramadan. Or a women's network that plans its flagship International Women's Day panel for March 9, which may be Eid al-Fitr.

Neither leader did anything wrong. They simply planned from a list instead of a calendar.

The second problem is volume. When a calendar holds more than 100 observances, it is tempting to post something for each one, and that is how programming turns into a stream of thin, forgettable messages.

What is different about the 2027 calendar?

The 2027 calendar has several overlaps and weekend shifts that are easy to miss if you plan from last year's dates. The table below maps where observances come together in 2027 and what that means for your ERGs and affinity groups.

Which 2027 dates bring several observances together?

Dates	What overlaps	What it means for your ERGs
February 6 to 10	Lunar New Year (Feb 6), Ramadan begins (expected Feb 8), and Ash Wednesday (Feb 10), all inside Black History Month	Plan food-centered events with fasting colleagues in mind, and consider evening timing that works around iftar
March 8 to 10	International Women's Day (Mar 8) and Eid al-Fitr (expected Mar 9 or 10)	Avoid locking a flagship event on March 9 or 10 until the Eid date is confirmed
March 22 to 23	Holi and Purim fall on the same two days	A natural moment for a cross-ERG celebration, or at least a reason not to double-book the same audience
October 1 to 3	Rosh Hashanah begins at sundown on October 1, the first day of LGBTQ+ History Month, NDEAM, and UK Black History Month	Hold month kickoff events on October 4 or 5 instead of the evening of October 1
October 10 to 11	World Mental Health Day, Yom Kippur, Columbus Day and Indigenous Peoples' Day, Canadian Thanksgiving, and National Coming Out Day	Treat October 11 as a no-event day for most ERGs and plan recognition in advance
December 24 to January 1	Hanukkah begins on Christmas Eve, Kwanzaa starts December 26, and both end on January 1, 2028	Send year-end messages before December 23, and make them inclusive of all three

Which 2027 holidays fall on a weekend?

Three US federal holidays fall on a weekend in 2027, and New Year's Day 2028 pulls its observed day back into December 2027, according to OPM's 2027 federal holiday schedule.

Holiday	Actual date	US federal holiday observed
Juneteenth	Saturday, June 19	Friday, June 18
Independence Day	Sunday, July 4	Monday, July 5
Christmas Day	Saturday, December 25	Friday, December 24
New Year's Day 2028	Saturday, January 1, 2028	Friday, December 31, 2027

For global ERGs, daylight saving time creates two short windows when the usual US to UK time gap shrinks by an hour. From March 14 to March 28 and from October 31 to November 7, 2027, New York is four hours behind London instead of five.

Should your ERG observe every date on the calendar?

No. The strongest ERG programs observe fewer dates and do each one well. We call this the Anchor, Spotlight, Acknowledge model, and it gives every observance a clear level of investment before planning starts.

Tier	What it looks like	Typical lead time	Example
Anchor	Flagship programming with an executive sponsor, budget, speakers, and a measurable goal	60 to 90 days	A Black employee network building its Black History Month series
Spotlight	One well-run event, often co-hosted with another ERG	30 to 45 days	A Holi and Purim celebration co-hosted by two faith and culture ERGs
Acknowledge	A thoughtful message, newsletter feature, or curated reading list	At least 2 weeks	A Veterans Day and Remembrance Day message from the veterans network

Most ERGs can sustain two or three Anchors a year without burning out their leaders. Everything else becomes a Spotlight or an Acknowledge, and that is a choice, not a failure.

What are the key observances for each month of 2027?

The sections below list verified 2027 dates for each month. Use the "Look ahead" note at the end of each month to see what should already be in planning.

What should ERGs observe in January 2027?

January 2027 is National Mentoring Month in the United States, and Martin Luther King Jr. Day falls on Monday, January 18.

North America

Date	Observance	Where
All month	National Mentoring Month	US
All month	Tamil Heritage Month	Canada
Fri, Jan 1	New Year's Day	US, Canada, Mexico
Mon, Jan 4	National Ribbon Skirt Day	Canada
Thu, Jan 7	Orthodox Christmas (Julian calendar)	Global
Mon, Jan 18	Martin Luther King Jr. Day (federal holiday)	US
Fri, Jan 22 (sundown) to Sat, Jan 23	Tu BiShvat	Global
Wed, Jan 27	International Holocaust Remembrance Day	Global

United Kingdom

Date	Observance	Where
Mon, Jan 4	2 January substitute bank holiday	Scotland
Wed, Jan 27	Holocaust Memorial Day	UK

Look ahead: Finalize Black History Month and Lunar New Year plans. Start planning Women's History Month and Arab American Heritage Month.

What should ERGs observe in February 2027?

February 2027 is Black History Month in the United States and Canada, and it also includes Lunar New Year on February 6 and the expected start of Ramadan around February 8.

North America

Date	Observance	Where
All month	Black History Month	US, Canada
Mon, Feb 1	Constitution Day (statutory holiday)	Mexico
Sat, Feb 6	Lunar New Year (Year of the Goat)	Global
Mon, Feb 8 (expected)	Ramadan begins	Global
Wed, Feb 10	Ash Wednesday (Lent begins)	Global
Mon, Feb 15	Presidents' Day (Washington's Birthday, federal holiday)	US
Mon, Feb 15	Family Day, Louis Riel Day, Islander Day, or Heritage Day (provincial)	Canada
Mon, Feb 15	National Flag of Canada Day	Canada

United Kingdom

Date	Observance	Where
All month	LGBT+ History Month	UK
Sat, Feb 6	Lunar New Year	UK
Mon, Feb 8 (expected)	Ramadan begins	UK

Look ahead: Finalize Women's History Month and International Women's Day. Start planning AANHPI Heritage Month, Jewish American Heritage Month, and Mental Health Awareness Month for May.

What should ERGs observe in March 2027?

March 2027 is Women's History Month in the United States and the UK, with International Women's Day on Monday, March 8 and Eid al-Fitr expected on March 9 or 10.

North America

Date	Observance	Where
All month	Women's History Month	US
All month	Irish-American Heritage Month (US) and Irish Heritage Month (Canada)	US, Canada
All month	Developmental Disabilities Awareness Month	US
Mon, Mar 8	International Women's Day	Global
Tue, Mar 9 or Wed, Mar 10 (expected)	Eid al-Fitr	Global
Sun, Mar 14	Daylight saving time begins	US, Canada
Mon, Mar 15	Benito Juárez's Birthday (statutory holiday)	Mexico
Wed, Mar 17	St. Patrick's Day	US, Canada
Sat, Mar 20	Nowruz (Persian New Year)	Global
Sun, Mar 21	International Day for the Elimination of Racial Discrimination	Global
Mon, Mar 22 (sundown) to Tue, Mar 23	Purim	Global
Mon, Mar 22 to Tue, Mar 23	Holi (Holika Dahan on Mar 22, festival of colors on Mar 23)	Global
Fri, Mar 26	Good Friday (statutory holiday in Canada)	US, Canada
Sun, Mar 28	Easter Sunday	Global
Mon, Mar 29	Easter Monday (federal holiday)	Canada
Wed, Mar 31	International Transgender Day of Visibility	Global
Wed, Mar 31	César Chávez Day	US

United Kingdom

Date	Observance	Where
All month	Women's History Month	UK
Sun, Mar 7	Mothering Sunday	UK
Mon, Mar 8	Commonwealth Day	UK
Wed, Mar 17	St Patrick's Day (bank holiday)	Northern Ireland
Fri, Mar 26	Good Friday (bank holiday)	UK
Sun, Mar 28	British Summer Time begins	UK
Mon, Mar 29	Easter Monday (bank holiday)	England, Wales, Northern Ireland

UK bank holiday dates for all of 2027 come from the official gov.uk bank holiday calendar.

Look ahead: Finalize Arab American Heritage Month, Vaisakhi, and Passover plans. Start planning Pride Month and Juneteenth.

What should ERGs observe in April 2027?

April 2027 is Arab American Heritage Month and Autism Acceptance Month in the United States and Sikh Heritage Month in Canada, with Vaisakhi on April 14 and Passover beginning at sundown on April 21.

North America

Date	Observance	Where
All month	Arab American Heritage Month	US
All month	Autism Acceptance Month (World Autism Awareness Day is Fri, Apr 2)	US
All month	Celebrate Diversity Month	US
All month	Sikh Heritage Month	Canada
Wed, Apr 14	Vaisakhi	Global
Wed, Apr 21 (sundown) to Thu, Apr 29	Passover	Global
Thu, Apr 22	Earth Day	Global

United Kingdom

Date	Observance	Where
Wed, Apr 14	Vaisakhi	UK
Wed, Apr 21 (sundown) to Thu, Apr 29	Passover	UK
Thu, Apr 22	Stephen Lawrence Day	UK

Passover and other Jewish holiday dates in this calendar follow Hebcal's 2027 Jewish holiday calendar.

Look ahead: Finalize AANHPI Heritage Month, Jewish American Heritage Month, and Eid al-Adha plans. Start planning Disability Pride Month for July.

What should ERGs observe in May 2027?

May 2027 is Asian American, Native Hawaiian, and Pacific Islander (AANHPI) Heritage Month and Jewish American Heritage Month in the United States, and Asian Heritage Month and Canadian Jewish Heritage Month in Canada.

North America

Date	Observance	Where
All month	AANHPI Heritage Month	US
All month	Jewish American Heritage Month	US
All month	Mental Health Awareness Month	US
All month	Military Appreciation Month	US
All month	Asian Heritage Month	Canada
All month	Canadian Jewish Heritage Month	Canada
Sun, May 2	Orthodox Easter	Global
Mon, May 3 (sundown) to Tue, May 4	Yom HaShoah (Holocaust Remembrance Day)	Global
Wed, May 5	Cinco de Mayo	US, Mexico
Sun, May 9	Mother's Day	US, Canada
Sun, May 16 (expected)	Eid al-Adha	Global
Mon, May 17	International Day Against Homophobia, Biphobia and Transphobia (IDAHOBIT)	Global
Thu, May 20 (date varies by tradition)	Vesak (Buddha Day)	Global
Thu, May 20	Global Accessibility Awareness Day	Global
Fri, May 21	World Day for Cultural Diversity for Dialogue and Development	Global
Mon, May 24	Victoria Day, and National Patriots' Day in Quebec	Canada
Mon, May 31	Memorial Day (federal holiday)	US

United Kingdom

Date	Observance	Where
Mon, May 3	Early May bank holiday	UK
Mid-May (dates to be confirmed)	Mental Health Awareness Week	UK
Sun, May 16 (expected)	Eid al-Adha	UK
Thu, May 20 (date varies by tradition)	Vesak (Buddha Day)	UK
Mon, May 31	Spring bank holiday	UK

The Mental Health Foundation ran Mental Health Awareness Week from May 11 to 17 in 2026, so expect a similar mid-May window in 2027.

Look ahead: Finalize Pride Month and Juneteenth. Start planning South Asian Heritage Month (UK) and the Americans with Disabilities Act anniversary.

What should ERGs observe in June 2027?

June 2027 is Pride Month across North America and the UK, and Juneteenth falls on Saturday, June 19, with the US federal holiday observed on Friday, June 18.

North America

Date	Observance	Where
All month	Pride Month	US, Canada
All month	Caribbean-American Heritage Month	US
All month	Men's Health Month	US
All month	National Indigenous History Month	Canada
All month	Italian, Filipino, and Portuguese Heritage Months	Canada
Sun, Jun 6	Canadian Armed Forces Day	Canada
Sun, Jun 6 (expected)	Islamic New Year	Global
Thu, Jun 10 (sundown) to Sat, Jun 12	Shavuot	Global
Fri, Jun 18	Juneteenth (federal holiday observed)	US
Sat, Jun 19	Juneteenth	US
Sun, Jun 20	Father's Day	US, Canada
Sun, Jun 20	World Refugee Day	Global
Mon, Jun 21	National Indigenous Peoples Day	Canada
Thu, Jun 24	Fête nationale du Québec (Saint-Jean-Baptiste Day, statutory holiday)	Quebec
Sun, Jun 27	Canadian Multiculturalism Day	Canada

United Kingdom

Date	Observance	Where
All month	Pride Month	UK
All month	Gypsy, Roma and Traveller History Month	UK
Mon, Jun 14 to Sun, Jun 20	Refugee Week	UK
Sun, Jun 20	Father's Day	UK
Tue, Jun 22	Windrush Day	UK

Refugee Week has confirmed its 2027 dates as June 14 to 20, ending on World Refugee Day.

Look ahead: Finalize Disability Pride Month and South Asian Heritage Month. Start planning Hispanic Heritage Month, which begins mid-September.

What should ERGs observe in July 2027?

July 2027 is Disability Pride Month in the United States, and it opens with Canada Day on Thursday, July 1 and US Independence Day on Sunday, July 4.

North America

Date	Observance	Where
All month	Disability Pride Month	US
All month	National Minority Mental Health Awareness Month	US
Thu, Jul 1	Canada Day	Canada
Sun, Jul 4	Independence Day (federal holiday observed Mon, Jul 5)	US
Wed, Jul 14	International Non-Binary People's Day	Global
Mon, Jul 26	Americans with Disabilities Act anniversary (37th)	US

United Kingdom

Date	Observance	Where
All month	South Asian Heritage Month	UK
Mon, Jul 12	Battle of the Boyne (bank holiday)	Northern Ireland

South Asian Heritage Month in the UK now runs for the full month of July. The South Asian Heritage Trust moved it from its earlier July 18 to August 17 window starting in 2026, so update any templates that still use the old dates.

Look ahead: Finalize Hispanic Heritage Month speakers and budgets. Start planning October, one of the most crowded months on the 2027 calendar.

What should ERGs observe in August 2027?

August 2027 is the quietest month on the observance calendar, which makes it the best window to finalize fall programming.

North America

Date	Observance	Where
Sun, Aug 1	Emancipation Day	Canada
Mon, Aug 2	Civic Holiday (named BC Day, New Brunswick Day, or Saskatchewan Day in some provinces)	Canada
Mon, Aug 9	International Day of the World's Indigenous Peoples	Global
Thu, Aug 12	International Youth Day	Global
Sun, Aug 15 (expected)	Mawlid al-Nabi	Global
Thu, Aug 26	Women's Equality Day	US

United Kingdom

Date	Observance	Where
Mon, Aug 2	Summer bank holiday	Scotland
Mon, Aug 30	Summer bank holiday	England, Wales, Northern Ireland

Look ahead: Lock every October plan now, including UK Black History Month. Start planning Native American Heritage Month and Diwali.

What should ERGs observe in September 2027?

National Hispanic Heritage Month runs from September 15 to October 15, 2027, and Canada marks the National Day for Truth and Reconciliation on Thursday, September 30.

North America

Date	Observance	Where
All month	Suicide Prevention Awareness Month	US
Mon, Sep 6	Labor Day (US) and Labour Day (Canada)	US, Canada
Sat, Sep 11	Patriot Day and National Day of Service and Remembrance	US
Wed, Sep 15	National Hispanic Heritage Month begins (runs to Oct 15)	US
Wed, Sep 15	Independence Day in Costa Rica, El Salvador, Guatemala, Honduras, and Nicaragua	Global
Wed, Sep 15	Mid-Autumn Festival	Global
Thu, Sep 16	Mexican Independence Day	Mexico, US
Thu, Sep 30	National Day for Truth and Reconciliation and Orange Shirt Day	Canada

According to HispanicHeritageMonth.gov, the observance began as a week in 1968 and became a 30-day period under Public Law 100-402 in 1988. It starts mid-month because several Latin American countries celebrate independence on September 15 and 16.

United Kingdom

The UK has no bank holidays in September 2027. Use the month to finalize Black History Month, which begins October 1.

Look ahead: Finalize Native American Heritage Month, Diwali, and Veterans Day and Remembrance Day plans. Start drafting year-end messages.

What should ERGs observe in October 2027?

October 2027 is LGBTQ+ History Month and National Disability Employment Awareness Month (NDEAM) in the United States, Women's History Month in Canada, and Black History Month in the UK.

North America

Date	Observance	Where
Through Oct 15	National Hispanic Heritage Month	US
All month	LGBTQ+ History Month	US
All month	National Disability Employment Awareness Month (NDEAM)	US
All month	Filipino American History Month	US
All month	Italian American Heritage Month and German-American Heritage Month	US
All month	Breast Cancer Awareness Month	Global
All month	Women's History Month, Latin American Heritage Month, Canadian Islamic History Month, and German Heritage Month	Canada
Fri, Oct 1 (sundown) to Sun, Oct 3	Rosh Hashanah	Global
Sun, Oct 10	World Mental Health Day	Global
Sun, Oct 10 (sundown) to Mon, Oct 11	Yom Kippur	Global
Mon, Oct 11	Columbus Day (federal holiday) and Indigenous Peoples' Day (observed by many states, cities, and employers)	US
Mon, Oct 11	Thanksgiving	Canada
Mon, Oct 11	National Coming Out Day	US
Fri, Oct 15 (sundown) to Fri, Oct 22	Sukkot	Global
Fri, Oct 29	Diwali	Global

The Government of Canada recognizes October as Women's History Month, so cross-border women's networks may want two distinct moments in the year rather than one.

United Kingdom

Date	Observance	Where
All month	Black History Month	UK
Sun, Oct 10	World Mental Health Day	UK
Fri, Oct 29	Diwali	UK
Sun, Oct 31	British Summer Time ends	UK

Look ahead: Finalize Transgender Awareness Week, Native American Heritage Day, and Inter Faith Week. Start planning December and your January 2028 kickoff.

What should ERGs observe in November 2027?

November 2027 is Native American Heritage Month in the United States and Hindu Heritage Month in Canada, with Veterans Day and Remembrance Day on Thursday, November 11.

North America

Date	Observance	Where
All month	Native American Heritage Month	US
All month	National Veterans and Military Families Month	US
All month	Hindu Heritage Month and Lebanese Heritage Month	Canada
Mon, Nov 1 to Tue, Nov 2	Día de los Muertos	Mexico, US
Sun, Nov 7	Daylight saving time ends	US, Canada
Thu, Nov 11	Veterans Day (US) and Remembrance Day (Canada)	US, Canada
Sat, Nov 13 to Fri, Nov 19	Transgender Awareness Week	Global
Mon, Nov 15	Revolution Day (statutory holiday)	Mexico
Fri, Nov 19	International Men's Day	Global
Sat, Nov 20	Transgender Day of Remembrance	Global
Thu, Nov 25	Thanksgiving (federal holiday)	US
Fri, Nov 26	Native American Heritage Day	US

United Kingdom

Date	Observance	Where
Thu, Nov 11 and Sun, Nov 14	Armistice Day (two-minute silence at 11 a.m.) and Remembrance Sunday	UK
Sun, Nov 14 to Sun, Nov 21	Inter Faith Week	England, Wales, Northern Ireland
Mid-November to mid-December (dates to be confirmed)	UK Disability History Month	UK
Fri, Nov 19	International Men's Day	UK
Tue, Nov 30	St Andrew's Day (bank holiday)	Scotland

Inter Faith Week always begins on Remembrance Sunday and runs to the following Sunday, which places it at November 14 to 21 in 2027.

Look ahead: Finalize year-end messages and your 2028 Anchor observances. Start planning Black History Month 2028.

What should ERGs observe in December 2027?

December 2027 brings an unusual overlap: Hanukkah begins at sundown on Christmas Eve, Friday, December 24, and Kwanzaa starts December 26, so all three celebrations share the same week.

North America

Date	Observance	Where
Wed, Dec 1	World AIDS Day	Global
Fri, Dec 3	International Day of Persons with Disabilities	Global
Fri, Dec 10	Human Rights Day	Global
Fri, Dec 24	Christmas (US federal holiday observed)	US
Fri, Dec 24 (sundown) to Sat, Jan 1, 2028	Hanukkah	Global
Sat, Dec 25	Christmas Day (Canada statutory holiday observed Mon, Dec 27)	US, Canada, Mexico
Sun, Dec 26	Boxing Day (Canada federal holiday observed Tue, Dec 28)	Canada
Sun, Dec 26 to Sat, Jan 1, 2028	Kwanzaa	US
Fri, Dec 31	New Year's Day 2028 (US federal holiday observed)	US

United Kingdom

Date	Observance	Where
Fri, Dec 3	International Day of Persons with Disabilities	UK
Fri, Dec 24 (sundown)	Hanukkah begins	UK
Mon, Dec 27	Christmas Day substitute bank holiday	UK
Tue, Dec 28	Boxing Day substitute bank holiday	UK

Canadian statutory and observed dates in this calendar are drawn from Canada Holidays' 2027 federal schedule.

Look ahead: Review which 2027 observances earned Anchor status, and set your 2028 calendar before the new year begins.

How can you plan observance programming without burning out your ERG and employee network leaders?

You plan observance programming sustainably by deciding tiers early, sharing the work across ERGs, and moving approvals and communications onto a predictable schedule. Most ERG leaders volunteer on top of full-time roles, so the calendar has to work for them, not against them.

• Start with a single planning session each quarter where every ERG picks its Anchors, Spotlights, and Acknowledges for the next 90 days. 

• Put every confirmed observance on one shared calendar so leaders can spot overlaps, like the shared dates above, before two groups book the same week. 

  
  

This is one of the simplest ways to keep ERG leads from burning out.

Build your timeline backward from launch. On Teleskope's ERG event management webinar, an ERG program leader at a Fortune 500 logistics company shared that her team asks for about a week to clear two-stage event approvals, then aims to announce events at least two weeks ahead. Heritage month events with external speakers, food, or giving components often need more time, and this ERG compliance checklist covers what to have ready.

Co-host where the calendar invites it. March 22 and 23, when Holi and Purim share the same days, and the Hanukkah, Christmas, and Kwanzaa week are natural moments for cross-ERG programming that grows reach for every group involved. If your ERGs span the US and UK, this webinar on ERGs in the Americas and Europe explores how priorities differ across regions.

Teleskope brings these steps into one place. With ERG management software and events and communications tools, ERGs can publish to a shared calendar, co-host events that appear on every collaborating group's calendar, and route each event through configurable approvals. Ask Skope, Teleskope's agentic AI, can recommend event types based on what has worked in your programs and turn a conversation into a ready-to-review event draft or newsletter, including translated versions for global chapters.

Ready to plan your 2027 observances with less manual work?

If your team is mapping 2027 observances across spreadsheets, inboxes, and a handful of calendars, you are carrying more coordination than you need to. Book a demo to see how Teleskope helps ERG leaders plan, approve, promote, and measure observance programming from a single platform.

Frequently Asked Questions

When is Black History Month in 2027?

Black History Month runs through all of February 2027 in the United States and Canada, and through all of October 2027 in the UK. The dates differ because each country set its observance independently. The Government of Canada lists February as Black History Month, while UK organizations have marked it in October since 1987.

When is Ramadan in 2027?

Ramadan 2027 is expected to begin on or around February 8 and end with Eid al-Fitr on March 9 or 10. The exact dates depend on the sighting of the new moon, so they are confirmed only a day or two in advance. The National reports astronomical projections of a February 8 start and a 29 or 30 day month.

When is Hispanic Heritage Month in 2027?

National Hispanic Heritage Month runs from Wednesday, September 15 to Friday, October 15, 2027. It spans two calendar months because it begins on the independence days of five Central American countries. HispanicHeritageMonth.gov notes the 30-day period was enacted into law in 1988.

When are Diwali and Hanukkah in 2027?

Diwali falls on Friday, October 29, 2027, and Hanukkah begins at sundown on Friday, December 24, 2027. Both follow lunar or lunisolar calendars, which is why their dates shift every year. Timeanddate lists Diwali 2027 on October 29, and Hebcal lists the first Hanukkah candle on December 24.

How far in advance should ERGs plan heritage month events?

ERGs should start planning flagship heritage month programming 60 to 90 days in advance. That window covers speaker booking, budget approval, event approvals, and at least two weeks of promotion. Practitioners on Teleskope's ERG event management webinar describe roughly a week for approvals and a two-week minimum for communications, which leaves little room if planning starts late.

Can affinity groups, BRGs, and employee networks use this calendar?

Yes, this calendar applies to any employee-led community, whatever your organization calls it. ERGs, business resource groups, affinity groups, and employee networks all plan around the same heritage months and holidays. Only the name differs, so the dates and planning timelines here apply the same way.

Is Juneteenth a federal holiday in 2027?

Yes, Juneteenth is a US federal holiday, and in 2027 it falls on Saturday, June 19, so federal employees observe it on Friday, June 18. The shift happens because federal holidays that land on a Saturday move to the preceding Friday. The OPM 2027 holiday schedule confirms the June 18 observance.