Is your communications calendar adjusted for 2021? March and April, (much like September and October) bring a few ‘moving’ holidays and observances that fall on different dates every year. Whether you use Asana, Airtable, SmartSheets, CoSchedule, Google calendar (or a plain old spreadsheet!), be sure to adjust those key dates that change from year-to-year, as well as the newer observances in our culture, like Ruth Bader Ginsburg’s birthday. Take a moment and pencil these key dates in (or get ALL the calendar resources here).

March: Women’s History Month

March 13 to April 15: National Deaf History Month
March 4, 1913: Department of Labor established
March 8: International Women’s Day
March 10: National Women and Girls HIV/AIDS Awareness Day
March 11: 1 yr anniversary of COVID world pandemic declaration
March 14: Daylight Savings Time starts
March 15, 1933: Ruth Bader Ginsburg’s birthday
March 17, 1912: Bayard Rustin’s birthday
March 19, 1917: Supreme Court approves Eight Hour Act
March 20, 2003: Iraq War anniversary
March 20: International Day of Happiness
March 22: World Water Day
March 23, 2010: Affordable Care Act (ACA) signed into law
March 24, 2018: March for Our Lives
March 25, 1965: Selma Alabama March
March 27: Start of Passover [March 27—April 4] (date varies each year)
March 30: National Doctors Day
March 31: International Transgender Day of Visibility
March 31: Cesar Chavez Day

April Preview

April: National Volunteer Month
April: Sexual Assault Awareness Month
April 1: April Fools Day (don’t be fooled)
April 2, 2019: Equal Pay Day
April 2: Good Friday (date varies each year)
April 4: End of Passover (date varies each year)
April 4: Easter (date varies each year)
April 5-11: National Public Health Week
April 7: World Health Day
April 10: National Siblings Day
April 10: Dolores Huerta’s Birthday
April 11-17: Black Maternal Health Week
April 11: Anniversary of Fair Housing Act (2018 is 50 year)
April 11: National Pet Day
April 13: Baisakhi Day (Vaisakhi Day) (date varies each year)
April 13/14 – April 15/16: Lao New Year (Pii Mai) (date varies each year)
April 15: Tax Day
April 15-22: National Volunteer Week
April 20, 2018: National School Walkout
April 21, 2014: Start of Flint Water crisis
April 22: Earth Day
April 22, 2021: US-Global Climate Summit
April 23-27: Every Kid Healthy week
April 29, 2017: People’s Climate Marches

Need more calendar inspiration? Check out our progressive calendar roundup plus Evergreen Editorial Calendar.