Below are holidays for the calendar year 2015. Holidays that are in bold are both National and prominent holidays. You can get more detailed information on each holiday by clicking on them.
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| Date | Holiday | Details |
|---|---|---|
| - January 2015 - | ||
| Jan 1 -Thursday | New Year's Day | National holiday |
| Jan 3 - Saturday | The Prophet's Birthday | Muslim |
| Jan 6 - Tuesday | Epiphany | Christian |
| Jan 7 - Wednesday | Orthodox Christmas Day | Orthodox Christian |
| Jan 14 - Wednesday | Orthodox New Year | Orthodox Christian |
| Jan 14 | Makar Sankranti | Hindu |
| Jan 19 - Monday | Martin Luther King Day | National holiday |
| - February 2015 - | ||
| Feb 1 - Sunday | National Freedom Day | Observance |
| Feb 2 - Monday | Groundhog Day | Observance |
| Feb 4 | Tu B'Shevat | Jewish |
| Feb 6 - Friday | National Wear Red Day | Observance |
| Feb 12 - Thursday | Lincoln's Birthday | Observance |
| Feb 14 - Saturday | Valentine's Day | Observance |
| Feb 16 - Monday | Presidents' Day - Washington's Birthday | National holiday |
| Feb 17 - Tuesday | Mardi Gras | Christian |
| Feb 17 | Maha Shivaratri | Hindu |
| Feb 18 - Wednesday | Ash Wednesday | Christian |
| Feb 18 | Lent | Christian |
| Feb 19 - Thursday | Chinese New Year | Observance |
| - March 2015 - | ||
| Mar 2 - Monday | Read Across America Day | Observance |
| Mar 4 | Purim | Jewish |
| Mar 6 - Friday | Employee Appreciation Day | Observance |
| Mar 6 | Holi | Hindu |
| Mar 8 - Sunday | Daylight Saving Time - begins | Daylight Saving Time |
| Mar 17 - Tuesday | St. Patrick's Day | Observance |
| Mar 20 - Friday | Spring/Fall - March equinox | Season |
| Mar 28 | Rama Navami | Hindu |
| Mar 29 - Sunday | Palm Sunday | Christian |
| - April 2015 - | ||
| Apr 1 - Wednesday | April Fools' Day | Observance |
| Apr 2 | Maundy Thursday | Christian |
| Apr 3 - Friday | Good Friday | Christian |
| Apr 4 | Holy Saturday | Christian |
| Apr 4 - Saturday | Passover - Starts | Jewish |
| Apr 5 - Sunday | Easter | Christian |
| Apr 6 | Easter Monday | Christian |
| Apr 10 | Orthodox Good Friday | Orthodox Christian |
| Apr 11 - Saturday | Passover - Final Day | Jewish |
| Apr 12 | Orthodox Easter | Orthodox Christian |
| Arp 13 - Monday | Thomas Jefferson Birthday | Observance |
| Apr 15 | Yom Hashoah | Jewish |
| Apr 15 - Wednesday | Tax Day | Observance |
| Apr 21 - Tuesday | National Library Workers Day | Observance |
| Apr 22 - Wednesday | Administrative Professionals Day | Observance |
| Apr 22 - Wednesday | Earth Day | Observance |
| Apr 23 - Thursday | Take our Daughters and Sons to Work Day | Observance |
| Apr 24 - Friday | Arbor Day | Observance |
| - May 2015 - | ||
| May 1 - Friday | May Day | Observance |
| May 5 - Tuesday | Cinco de Mayo | Observance |
| May 6 - Wednesday | National Nurses Day | Observance |
| May 7 - Thursday | National Day of Prayer | Observance |
| May 7 | Lag BaOmer | Jewish |
| May 10 - Sunday | Mothers' Day | Observance |
| May 14 - Thursday | Ascension Day | Christian |
| May 15 - Friday | Peace Officers Memorial Day | Observance |
| May 16 | Isra and Mi'raj | Muslim |
| May 16 - Saturday | Armed Forces Day | Observance |
| May 22 - Friday | National Maritime Day | Observance |
| May 24 - Sunday | Pentecost | Christian |
| May 24 | Shavuot | Jewish |
| May 25 | Whit Monday | Christian |
| May 25 - Monday | Memorial Day | National holiday |
| - June 2015 - | ||
| Jun 1 | Laylat al Bara'at | Muslim |
| Jun 4 | Corpus Christi | Christian |
| Jun 6 - Saturday | D-Day | Observance |
| Jul 13 | Laylat al Qadr | Muslim |
| Jun 14 - Sunday | Flag Day | Observance |
| Jun 18 - Thursday | Ramadan starts | Muslim |
| Jun 21 - Sunday | Summer/Winter Solstice | Season |
| Jun 21 - Sunday | Fathers' Day | Observance |
| - July 2015 - | ||
| Jul 4 - Saturday | 4th of July - Independence Day | National holiday |
| Jul 18 - Saturday | Eid al-Fitr | Muslim |
| Jul 18 | Rath Yatra | Hindu |
| Jul 26 - Sunday | Parents Day | Observance |
| Jul 26 | Tisha B'Av | Jewish |
| - August 2015 - | ||
| Aug 2 - Sunday | Friendship Day | Observance |
| Aug 15 | Assumption of Mary | Christian |
| Aug 19 - Wednesday | National Aviation Day | Observance |
| Aug 21 - Friday | Senior Citizens Day | Observance |
| Aug 26 - Wednesday | Women's Equality Day | Observance |
| Aug 29 | Raksha Bandhan | Hindu |
| - September 2015 - | ||
| Sept 4 | Krishna Janmashtami | Hindu |
| Sep 7 - Monday | Labor Day | National holiday |
| Sep 11 - Friday | Patriot Day | Observance |
| Sep 13 - Sunday | National Grandparents Day | Observance |
| Sep 14 - Monday | Rosh Hashana | Jewish |
| Sept 16 | Ganesh Chaturthi | Hindu |
| Sep 17 - Thursday | Constitution Citizenship Day | Observance |
| Sept 22 | Day of Arafat | Muslim |
| Sep 23 - Wednesday | Fall/ Spring - September equinox | Season |
| Sep 23 - Wednesday | Yom Kippur | Jewish |
| Sep 24 - Thursday | Eid al-Adha | Muslim |
| Sep 28 | Sukkot | Jewish |
| - October 2015 - | ||
| Oct 5 - Monday | Child Health Day | Observance |
| Oct 5 | Shemini Atzeret | Jewish |
| Oct 6 | Simchat Torah | Jewish |
| Oct 9 | Leif Erikson | Observance |
| Oct 12 - Monday | Columbus Day | National holiday |
| Oct 13 | Muharram | Muslim |
| Oct 13 | Navratri | Hindu |
| Oct 16 - Friday | Boss's Day | Observance |
| Oct 22 | Dussehra | Hindu |
| Oct 24 | Ashura | Muslim |
| Oct 31 - Saturday | Halloween | Observance |
| - November 2015 - | ||
| Nov 1 - Sunday | All Saints' Day | Christian |
| Nov 1 - Sunday | Daylight Saving Time - ends | Daylight Saving Time |
| Nov 2 | All Souls Day | Christian |
| Nov 11 - Wednesday | Diwali | Hindu |
| Nov 11 - Wednesday | Veterans Day | National holiday |
| Nov 26 - Thursday | Thanksgiving Day | National holiday |
| Nov 27 | Black Friday | Observance |
| Nov 29 | Advent | Christian |
| Nov 30 | Cyber Monday | Observance |
| - December 2015 - | ||
| Dec 6 - Sunday | St Nicholas Day | Christian |
| Dec 7 - Monday | Pearl Harbor Remebrance Day | Observance |
| Dec 7 - Monday | Hanukkah/Chanukah - Starts | Jewish |
| Dec 14 - Monday | Hanukkah/Chanukah - Final Day | Jewish |
| Dec 17 - Thursday | Wright Brothers Day | Observance |
| Dec 22 - Tuesday | Winter/Summer Solstice | Season |
| Dec 24 - Thursday | The Prophet's Birthday | Muslim |
| Dec 24 | Christmas Eve | Christian |
| Dec 25 - Friday | Christmas Day | National holiday |
| Dec 26 - Saturday | Kwanzaa -thru Jan 1 | Observance |
| Dec 31 - Thursday | New Years Eve | Observance |