| New Year's Day | |  |
| Epiphany (The Three Wise Men Day) | | |
| Blue Monday | | |
| Martin Luther King Jr. Day | | |
| Australia Day | | |
| Black History Month | | |
| Groundhog Day | | |
| National Pizza Day | | |
| Chinese (Lunar) New Year | | |
|
| Carnival / Fat Tuesday | | |
| Fat Tuesday / Mardi Gras | | |
| Ash Wednesday | | |
| Valentine's Day | | |
| National Margarita Day | | |
| Leap Day | | |
| Women's History Month | | |
| International Women's Day | | |
| Ramadan starts | | |
| Pi Day | | |
| Ides of March | | |
| St. Patrick's Day | | |
| March Equinox | | |
| Palm Sunday | | |
| Purim | | |
|
| Feast of the Annunciation | | |
| Maundy Thursday | | |
| Good Friday | | |
| Easter | | |
| April Fool's Day | | |
| Easter Monday | | |
| National Beer Day | | |
| Eid al-Fitr (End of Ramadan) | | |
| Siblings Day | | |
| Tax Day | | |
| Earth Day | | |
| Arbor Day | | |
| Labor Day / May Day | | |
| National Day of Prayer | | |
| Free Comic Book Day | | |
| Cinco de Mayo | | |
| Mother's Day | | |
| Armed Forces Day | | |
| Pentecost / Whit Sunday | | |
| Memorial Day | | |
| Corpus Christi | | |
| D-Day | | |
| National Donut Day | | |
| Flag Day | | |
| Father's Day | | |
| Eid al-Adha | | |
| June Solstice | | |
| Canada Day | | |
| Independence Day | | |
| Bastille Day | | |
| Ashura | | |
| National Ice Cream Day | | |
| National Girlfriends Day | | |
| Victory Day | | |
| Assumption of Mary | | |
|
| National Dog Day | | |
| Labor Day | | |
| National Grandparents Day | | |
| Friday the 13th | | |
| Constitution Day and Citizenship Day | | |
| Batman Day | | |
| Mabon | | |
| September Equinox | | |
| National Coffee Day | | |
| National Boyfriend Day | | |
| Rosh Hashana | | |
| Leif Erikson Day | | |
| National Coming Out Day | | |
| Yom Kippur | | |
| Columbus Day | | |
| Sukkot Starts | | |
| Sweetest Day | | |
| National Cat Day | | |
| Halloween | | |
| All Saints' Day | | |
| Diwali | | |
| Guy Fawkes Day | | |
| National Doughnut Day | | |
| Marine Corps Birthday | | |
| Veterans Day | | |
| International Men's Day | | |
| Thanksgiving Day | | |
| Black Friday | | |
| Small Business Saturday | | |
| First Sunday of Advent | | |
| Cyber Monday | | |
| Giving Tuesday | | |
| St. Nicholas' Day | | |
| Friday the 13th | | |
| December Solstice | | |
| Yule | | |
| Christmas Eve | | |
| Christmas | | |
| Boxing Day | | |
| Hanukkah Starts | | |
| Kwanzaa (1st Day) | | |
| New Year's Eve | | |
