Below are holidays for the calendar year 2018. 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 2018 - | ||
| Jan 1 - Monday | New Year's Day 2018 | National holiday |
| Jan 6 - Saturday | Epiphany 2018 | Christian |
| Jan 7 - Sunday | Orthodox Christmas Day 2018 | Orthodox Christian |
| Jan 14 - Sunday | Orthodox New Year 2018 | Orthodox Christian |
| Jan 14 - Sunday | Makar Sankranti 2018 | Hindu |
| Jan 15 - Monday | Martin Luther King Day 2018 | National holiday |
| Jan 31 - Wednesday | Tu B'Shevat 2018 | Jewish |
| - February 2018 - | ||
| Feb 1 - Thursday | National Freedom Day 2018 | Observance |
| Feb 2 - Friday | National Wear Red Day 2018 | Observance |
| Feb 2 - Friday | Groundhog Day 2018 | Observance |
| Feb 12 - Monday | Lincoln's Birthday 2018 | Observance |
| Feb 13 - Tuesday | Mardi Gras 2018 | Christian |
| Feb 14 - Wednesday | Ash Wednesday 2018 | Christian |
| Feb 14 - Wednesday | Maha Shivaratri 2018 | Hindu |
| Feb 14 - Wednesday | Lent 2018 | Christian |
| Feb 14 - Wednesday | Valentine's Day 2018 | Observance |
| Feb 16 - Friday | Chinese New Year 2018 | Observance |
| Feb 19 - Monday | Presidents' Day - Washington's Birthday 2018 | National holiday |
| Feb 28 - Wednesday | Purim 2018 | Jewish |
| - March 2018 - | ||
| Mar 2 - Friday | Holi 2018 | Hindu |
| Mar 2 - Friday | Read Across America Day 2018 | Observance |
| Mar 2 - Friday | Employee Appreciation Day 2018 | Observance |
| Mar 11 - Sunday | Daylight Saving Time - begins 2018 | Daylight Saving Time |
| Mar 17 - Saturday | St. Patrick's Day 2018 | Observance |
| Mar 20 - Tuesday | Spring/Fall - March equinox 2018 | Season |
| Mar 25 - Sunday | Rama Navami 2018 | Hindu |
| Mar 25 - Sunday | Palm Sunday 2018 | Christian |
| Mar 29 - Thursday | Maundy Thursday 2018 | Christian |
| Mar 30 - Friday | Good Friday 2018 | Christian |
| Mar 31 - Saturday | Holy Saturday 2018 | Christian |
| Mar 31 - Saturday | Passover - Starts 2018 | Jewish |
| - April 2018 - | ||
| Apr 1 - Sunday | April Fools' Day 2018 | Observance |
| Apr 1 - Sunday | Easter 2018 | Christian |
| Apr 2 - Monday | Easter Monday 2018 | Christian |
| Apr 6 - Friday | Orthodox Good Friday 2018 | Orthodox Christian |
| Apr 7 - Saturday | Passover - Final Day 2018 | Jewish |
| Apr 8 - Sunday | Orthodox Easter 2018 | Orthodox Christian |
| Apr 11 - Wednesday | Yom Hashoah 2018 | Jewish |
| Apr 13 - Friday | Isra and Mi'raj 2018 | Muslim |
| Apr 13 - Friday | Thomas Jefferson Birthday 2018 | Observance |
| Apr 17 - Tuesday | Tax Day 2018 | Observance |
| Apr 17 - Tuesday | National Library Workers Day 2018 | Observance |
| Apr 22 - Sunday | Earth Day 2018 | Observance |
| Apr 22 - Wednesday | Administrative Professionals Day 2018 | Observance |
| Apr 26 - Thursday | Take our Daughters and Sons to Work Day 2018 | Observance |
| Apr 27 - Friday | Arbor Day 2018 | Observance |
| - May 2018 - | ||
| May 1 - Tuesday | May Day 2018 | Observance |
| May 1 - Tuesday | Laylat al Bara'at 2018 | Muslim |
| May 3 - Thursday | National Day of Prayer 2018 | Observance |
| May 3 - Thursday | Lag BaOmer 2018 | Jewish |
| May 5 - Saturday | Cinco de Mayo 2018 | Observance |
| May 6 - Sunday | National Nurses Day 2018 | Observance |
| May 10 - Thursday | Ascension Day 2018 | Christian |
| May 13 - Sunday | Mothers' Day 2018 | Observance |
| May 15 - Tuesday | Peace Officers Memorial Day 2018 | Observance |
| May 16 - Wednesday | Ramadan starts 2018 | Muslim |
| May 19 - Saturday | Armed Forces Day 2018 | Observance |
| May 20 - Sunday | Shavuot 2018 | Jewish |
| May 20 - Sunday | Pentecost 2018 | Christian |
| May 21 - Monday | Whit Monday 2018 | Christian |
| May 22 - Tuesday | National Maritime Day 2018 | Observance |
| May 28 - Monday | Memorial Day 2018 | National holiday |
| May 31 - Thursday | Corpus Christi 2018 | Christian |
| - June 2018 - | ||
| Jun 6 - Wednesday | D-Day 2018 | Observance |
| Jun 10 - Sunday | Laylat al Qadr 2018 | Muslim |
| Jun 14 - Thursday | Flag Day 2018 | Observance |
| Jul 14 - Thursday | Rath Yatra 2018 | Hindu |
| Jul 15 - Friday | Eid al-Fitr 2018 | Muslim |
| Jun 17 - Sunday | Fathers' Day 2018 | Observance |
| Jun 21 - Thursday | Summer/Winter Solstice 2018 | Season |
| - July 2018 - | ||
| Jul 4 - Wednesday | 4th of July - Independence Day 2018 | National holiday |
| Jul 22 - Sunday | Parents Day 2018 | Observance |
| Jul 22 - Sunday | Tisha B'Av 2018 | Jewish |
| - August 2018 - | ||
| Aug 5 - Sunday | Friendship Day 2018 | Observance |
| Aug 15 - Wednesday | Assumption of Mary 2018 | Christian |
| Aug 19 - Sunday | National Aviation Day 2018 | Observance |
| Aug 20 - Monday | Day of Arafat 2018 | Muslim |
| Aug 21 - Tuesday | Senior Citizens Day 2018 | Observance |
| Aug 22 - Wednesday | Eid al-Adha 2018 | Muslim |
| Aug 25 - Saturday | Raksha Bandhan 2018 | Hindu |
| Aug 26 - Sunday | Women's Equality Day 2018 | Observance |
| - September 2018 - | ||
| Sept 2 - Sunday | Krishna Janmashtami 2018 | Hindu |
| Sep 3 - Monday | Labor Day 2018 | National holiday |
| Sep 9 - Sunday | National Grandparents Day 2018 | Observance |
| Sept 10 - Monday | Muharram 2018 | Muslim |
| Sept 10 - Monday | Rosh Hashana 2018 | Jewish |
| Sep 11 - Tuesday | Patriot Day 2018 | Observance |
| Sept 12 - Wednesday | Ganesh Chaturthi 2018 | Hindu |
| Sep 17 - Monday | Constitution Citizenship Day 2018 | Observance |
| Sept 19 - Wednesday | Yom Kippur 2018 | Jewish |
| Sep 21 - Friday | Ashura 2018 | Muslim |
| Sep 23 - Sunday | Fall/ Spring - September equinox 2018 | Season |
| Sep 24 - Monday | Sukkot 2018 | Jewish |
| - October 2018 - | ||
| Oct 1 - Monday | Child Health Day 2018 | Observance |
| Oct 1 - Monday | Shemini Atzeret 2018 | Jewish |
| Oct 2 - Tuesday | Simchat Torah 2018 | Jewish |
| Oct 8 - Monday | Columbus Day 2018 | National holiday |
| Oct 9 - Tuesday | Leif Erikson 2018 | Observance |
| Oct 9 - Tuesday | Navratri 2018 | Hindu |
| Oct 16 - Tuesday | Boss's Day 2018 | Observance |
| Oct 18 - Thursday | Dussehra 2018 | Hindu |
| Oct 31 - Wednesday | Halloween 2018 | Observance |
| - November 2018 - | ||
| Nov 1 - Thursday | All Saints' Day 2018 | Christian |
| Nov 2 - Friday | All Souls Day 2018 | Christian |
| Nov 4 - Sunday | Daylight Saving Time - ends 2018 | Daylight Saving Time |
| Nov 7 - Wednesday | Diwali 2018 | Hindu |
| Nov 11 - Sunday | Veterans Day 2018 | National holiday |
| Nov 21 - Wednesday | The Prophet's Birthday 2018 | Muslim |
| Nov 22 - Thursday | Thanksgiving Day 2018 | National holiday |
| Nov 23 - Friday | Black Friday 2018 | Observance |
| Nov 26 - Monday | Cyber Monday 2018 | Observance |
| - December 2018 - | ||
| Dec 2 - Sunday | Advent 2018 | Christian |
| Dec 3 - Monday | Hanukkah/Chanukah - Starts 2018 | Jewish |
| Dec 6 - Thursday | St Nicholas Day 2018 | Christian |
| Dec 7 - Friday | Pearl Harbor Remebrance Day 2018 | Observance |
| Dec 10 - Monday | Hanukkah/Chanukah - Final Day 2018 | Jewish |
| Dec 17 - Monday | Wright Brothers Day 2018 | Observance |
| Dec 21 - Friday | Winter/Summer Solstice 2018 | Season |
| Dec 24 - Monday | Christmas Eve 2018 | Christian |
| Dec 25 - Tuesday | Christmas Day 2018 | National holiday |
| Dec 26 - Wednesday | Kwanzaa -thru Jan 1 2018 | Observance |
| Dec 31 - Monday | New Years Eve 2018 | Observance |