All 12 months of 2027 with ISO week numbers (Monday-start) and US holidays underlined — hover a date for the holiday name. 2027 has 52 ISO weeks.
Holidays in 2027: New Year — January 1, 2027 · Epiphany — January 6, 2027 · MLK Day — January 18, 2027 · Groundhog Day — February 2, 2027 · Chinese New Year — February 6, 2027 · Ramadan — February 8, 2027 · Mardi Gras — February 9, 2027 · Ash Wednesday — February 10, 2027 · Valentine's Day & Super Bowl — February 14, 2027 · Presidents' Day — February 15, 2027 · Eid al-Fitr — March 10, 2027 · The start of DST — March 14, 2027 · St. Patrick's Day — March 17, 2027 · Spring — March 20, 2027 · Palm Sunday — March 21, 2027 · Good Friday — March 26, 2027 · Easter — March 28, 2027 · April Fools' Day — April 1, 2027 · Tax Day — April 15, 2027 · Passover — April 21, 2027 · Earth Day — April 22, 2027 · Cinco de Mayo — May 5, 2027 · Mother's Day — May 9, 2027 · Eid al-Adha — May 16, 2027 · Memorial Day — May 31, 2027 · Flag Day — June 14, 2027 · Juneteenth — June 19, 2027 · Father's Day — June 20, 2027 · Summer — June 21, 2027 · Canada Day — July 1, 2027 · 4th of July — July 4, 2027 · Labor Day — September 6, 2027 · Grandparents Day — September 12, 2027 · Fall — September 22, 2027 · Rosh Hashanah — October 1, 2027 · Yom Kippur — October 10, 2027 · Columbus Day — October 11, 2027 · Diwali — October 29, 2027 · Halloween — October 31, 2027 · Día de los Muertos — November 1, 2027 · Election Day — November 2, 2027 · The end of DST — November 7, 2027 · Veterans Day — November 11, 2027 · Thanksgiving — November 25, 2027 · Black Friday — November 26, 2027 · Advent — November 28, 2027 · Cyber Monday — November 29, 2027 · St. Nicholas Day — December 6, 2027 · Winter — December 21, 2027 · Christmas Eve & Hanukkah — December 24, 2027 · Christmas — December 25, 2027 · Boxing Day & Kwanzaa — December 26, 2027 · New Year's Eve — December 31, 2027