| Wed, March 01 | St. David's Day | United Kingdom | Observance |
| Tue, March 07 | Purim | United Kingdom | Jewish Holiday |
| Fri, March 17 | St Patrick's Day | United Kingdom | Local Bank Holiday |
| Sun, March 19 | Mothering Sunday | United Kingdom | Observance |
| Mon, March 20 | March Equinox | United Kingdom | Season |
| Thu, March 23 | Ramadan Start | United Kingdom | Muslim |
| Sun, March 26 | Daylight Saving Time Starts | United Kingdom | Clock Change/daylight Saving Time |
| Mon, March 06 | Labour Day | Australia | Common State Holiday |
| Tue, March 07 | Purim | Australia | Jewish Holiday |
| Mon, March 13 | Labour Day | Australia | Common State Holiday |
| Mon, March 13 | Eight Hours Day | Australia | Common State Holiday |
| Mon, March 13 | Adelaide Cup | Australia | State Holiday |
| Mon, March 13 | Canberra Day | Australia | State Holiday |
| Thu, March 16 | National Close The Gap Day | Australia | Observance |
| Fri, March 17 | St Patrick's Day | Australia | Observance |
| Tue, March 21 | March Equinox | Australia | Season |
| Tue, March 21 | Harmony Day | Australia | Observance |
| Thu, March 23 | Ramadan Start | Australia | Muslim |
| Wed, March 01 | St David's Day | Canada | Observance |
| Tue, March 07 | Purim | Canada | Jewish Holiday |
| Sun, March 12 | Daylight Saving Time Starts | Canada | Clock Change/daylight Saving Time |
| Mon, March 13 | Commonwealth Day | Canada | Observance |
| Fri, March 17 | St. Patrick's Day | Canada | Observance |
| Mon, March 20 | March Equinox | Canada | Season |
| Mon, March 20 | St. Patrick's Day | Canada | Local Holiday |
| Thu, March 23 | Ramadan Start | Canada | Muslim |
| Tue, March 21 | March Equinox | Hong Kong | Season |
| Mon, March 13 | Taranaki Anniversary Day | New Zealand | Local Holiday |
| Mon, March 20 | Otago Anniversary Day | New Zealand | Local Holiday |
| Tue, March 21 | March Equinox | New Zealand | Season |
| Tue, March 21 | March Equinox | Afghanistan | Season |
| Thu, March 23 | Ramadan Starts | Afghanistan | Public Holiday |
| Wed, March 08 | Mothers Day | Albania | Observance |
| Tue, March 14 | Summer Day | Albania | National Holiday |
| Mon, March 20 | March Equinox | Albania | Season |
| Wed, March 22 | Nevruz Day | Albania | National Holiday |
| Sun, March 26 | Daylight Saving Time Starts | Albania | Clock Change/daylight Saving Time |
| Mon, March 20 | March Equinox | Algeria | Season |
| Mon, March 20 | March Equinox | American Samoa | Season |
| Tue, March 14 | Constitution Day | Andorra | National Holiday |
| Mon, March 20 | March Equinox | Andorra | Season |
| Sun, March 26 | Daylight Saving Time Starts | Andorra | Clock Change/daylight Saving Time |
| Wed, March 08 | International Womans Day | Angola | Public Holiday |
| Mon, March 20 | March Equinox | Angola | Season |
| Thu, March 23 | Southern Africa Liberation Day | Angola | Public Holiday |
| Fri, March 24 | Day Off For Southern Africa Liberation Day | Angola | Public Holiday |
| Thu, March 02 | James Ronald Webster Day | Anguilla | Public Holiday |
| Mon, March 20 | March Equinox | Anguilla | Season |
| Mon, March 20 | March Equinox | Antigua And Barbuda | Season |
| Mon, March 20 | March Equinox | Argentina | Season |
| Fri, March 24 | Memorial Day | Argentina | National Holiday |
| Wed, March 08 | International Women's Day | Armenia | National Holiday |
| Tue, March 21 | March Equinox | Armenia | Season |
| Sat, March 18 | National Anthem And Flag Day | Aruba | Public Holiday |
| Mon, March 20 | March Equinox | Aruba | Season |
| Tue, March 21 | March Equinox | Bahrain | Season |
| Mon, March 20 | March Equinox | Barbados | Season |
| Wed, March 08 | Women's Day | Belarus | National Holiday |
| Wed, March 15 | Constitution Day | Belarus | National Holiday |
| Tue, March 21 | March Equinox | Belarus | Season |
| Mon, March 20 | March Equinox | Belgium | Season |
| Sun, March 26 | Daylight Saving Time Starts | Belgium | Clock Change/daylight Saving Time |
| Mon, March 06 | National Heroes And Benefactors Day | Belize | Public Holiday |
| Mon, March 20 | March Equinox | Belize | Season |
| Wed, March 08 | Women's Day | Benin | National Day |
| Mon, March 20 | March Equinox | Benin | Season |
| Sun, March 12 | Daylight Saving Time Starts | Bermuda | Clock Change/daylight Saving Time |
| Mon, March 20 | March Equinox | Bermuda | Season |
| Sun, March 19 | Father Day | Bolivia | Observance |
| Mon, March 20 | March Equinox | Bolivia | Season |
| Thu, March 23 | Day Of The Sea | Bolivia | Observance |
| Wed, March 01 | Independence Day | Bosnia And Herzegovina | Local Holiday |
| Wed, March 08 | Mothers' Day | Bosnia And Herzegovina | Observance |
| Wed, March 08 | Br?ko District Establishment Day | Bosnia And Herzegovina | Local Holiday |
| Mon, March 20 | March Equinox | Bosnia And Herzegovina | Season |
| Mon, March 20 | March Equinox | Botswana | Season |
| Mon, March 20 | March Equinox | Brazil | Season |
| Tue, March 07 | Lavity Stoutt's Birthday | British Virgin Islands | Public Holiday |
| Mon, March 13 | Commonwealth Day | British Virgin Islands | Public Holiday |
| Mon, March 20 | March Equinox | British Virgin Islands | Season |
| Tue, March 21 | March Equinox | Brunei | Season |
| Thu, March 23 | Ramadan Start | Brunei | Public Holiday |
| Wed, March 01 | Baba Marta | Bulgaria | Observance |
| Fri, March 03 | Liberation Day | Bulgaria | National Holiday |
| Mon, March 20 | March Equinox | Bulgaria | Season |
| Sun, March 26 | Daylight Saving Time Starts | Bulgaria | Clock Change/daylight Saving Time |
| Wed, March 08 | International Women's Day | Burkina Faso | Public Holiday |
| Mon, March 20 | March Equinox | Burkina Faso | Season |
| Mon, March 20 | March Equinox | Burundi | Season |
| Mon, March 20 | March Equinox | Cabo Verde | Season |
| Wed, March 08 | International Women Day | Cambodia | Public Holiday |
| Tue, March 21 | March Equinox | Cambodia | Season |
| Mon, March 20 | March Equinox | Cameroon | Season |
| Mon, March 20 | March Equinox | Cayman Islands | Season |
| Mon, March 20 | March Equinox | Central African Republic | Season |
| Wed, March 29 | Commemoration Of Boganda | Central African Republic | Public Holiday |
| Mon, March 20 | March Equinox | Chad | Season |
| Mon, March 20 | March Equinox | Chile | Season |
| Wed, March 08 | International Women's Day | China | Half Day Holiday |
| Sun, March 12 | Arbor Day | China | Observance |
| Tue, March 21 | March Equinox | China | Season |
| Wed, March 08 | Women's Day | Colombia | Observance |
| Mon, March 20 | March Equinox | Colombia | Season |
| Mon, March 20 | Saint Joseph's Day | Colombia | National Holiday |
| Sat, March 18 | Cheikh Al Maarouf Day | Comoros | Public Holiday |
| Tue, March 21 | March Equinox | Comoros | Season |
| Mon, March 20 | March Equinox | Congo | Season |
| Wed, March 08 | International Women's Day | Congo Democratic Republic | Observance |
| Mon, March 20 | March Equinox | Congo Democratic Republic | Season |
| Mon, March 20 | International Francophonie Day | Congo Democratic Republic | Observance |
| Mon, March 20 | March Equinox | Cook Islands | Season |
| Sun, March 19 | Saint Joseph's Day | Costa Rica | Observance |
| Mon, March 20 | March Equinox | Costa Rica | Season |
| Mon, March 20 | March Equinox | Croatia | Season |
| Sun, March 12 | Daylight Saving Time Starts | Cuba | Clock Change/daylight Saving Time |
| Mon, March 20 | March Equinox | Cuba | Season |
| Mon, March 20 | March Equinox | Curacao | Season |
| Mon, March 20 | March Equinox | Cyprus | Season |
| Sat, March 25 | Greek Independence Day | Cyprus | National Holiday |
| Sun, March 26 | Daylight Saving Time Starts | Cyprus | Clock Change/daylight Saving Time |
| Wed, March 08 | International Women's Day | Czechia | Observance |
| Mon, March 20 | March Equinox | Czechia | Season |
| Mon, March 20 | March Equinox | Denmark | Season |
| Sun, March 26 | Daylight Saving Time Starts | Denmark | Clock Change/daylight Saving Time |
| Mon, March 20 | March Equinox | Dominica | Season |
| Mon, March 20 | March Equinox | Dominican Republic | Season |
| Tue, March 21 | March Equinox | East Timor | Season |
| Mon, March 20 | March Equinox | Ecuador | Season |
| Mon, March 20 | March Equinox | Egypt | Season |
| Wed, March 08 | Women's Day | El Salvador | Observance |
| Mon, March 20 | March Equinox | El Salvador | Season |
| Sun, March 26 | National Day Of Life, Peace And Justice | El Salvador | National Holiday |
| Wed, March 08 | Women's Day | Eritrea | Public Holiday |
| Tue, March 21 | March Equinox | Eritrea | Season |
| Mon, March 20 | March Equinox | Estonia | Season |
| Thu, March 02 | Adwa Victory Day | Ethiopia | Public Holiday |
| Tue, March 21 | March Equinox | Ethiopia | Season |
| Mon, March 20 | March Equinox | Falkland Islands | Season |
| Mon, March 20 | March Equinox | Faroe Islands | Season |
| Sun, March 26 | Daylight Saving Time Starts | Faroe Islands | Clock Change/daylight Saving Time |
| Tue, March 21 | March Equinox | Fiji | Season |
| Mon, March 20 | March Equinox | Finland | Season |
| Mon, March 20 | March Equinox | France | Season |
| Sun, March 26 | Daylight Saving Time Starts | France | Clock Change/daylight Saving Time |
| Mon, March 20 | March Equinox | French Guiana | Season |
| Sun, March 05 | Missionary Day | French Polynesia | Public Holiday |
| Mon, March 20 | March Equinox | French Polynesia | Season |
| Mon, March 20 | March Equinox | Gabon | Season |
| Mon, March 20 | March Equinox | Gambia | Season |
| Fri, March 03 | Mothers' Day | Georgia | Public Holiday |
| Wed, March 08 | International Women's Day | Georgia | Public Holiday |
| Tue, March 21 | March Equinox | Georgia | Season |
| Tue, March 21 | Nowruz | Georgia | Observance |
| Wed, March 08 | International Women's Day | Germany | Observance |
| Wed, March 08 | International Women's Day | Germany | Common Local Holiday |
| Fri, March 17 | St. Patrick's Day | Germany | Observance |
| Mon, March 20 | March Equinox | Germany | Season |
| Sun, March 26 | Daylight Saving Time Starts | Germany | Clock Change/daylight Saving Time |
| Mon, March 06 | Independence Day | Ghana | Public Holiday |
| Mon, March 20 | March Equinox | Ghana | Season |
| Mon, March 13 | Commonwealth Day | Gibraltar | Public Holiday |
| Sun, March 19 | Mothers' Day | Gibraltar | Observance |
| Mon, March 20 | March Equinox | Gibraltar | Season |
| Sun, March 26 | Daylight Saving Time Starts | Gibraltar | Clock Change/daylight Saving Time |
| Mon, March 20 | March Equinox | Greece | Season |
| Sat, March 25 | 25th Of March (national Holiday) | Greece | National Holiday |
| Sat, March 25 | Annunciation Of The Lord | Greece | National Holiday |
| Mon, March 20 | March Equinox | Greenland | Season |
| Sat, March 25 | Daylight Saving Time Starts | Greenland | Clock Change/daylight Saving Time |
| Mon, March 20 | March Equinox | Grenada | Season |
| Mon, March 06 | Guam History And Chamorro Heritage Day | Guam | Public Holiday |
| Tue, March 21 | March Equinox | Guam | Season |
| Mon, March 20 | March Equinox | Guatemala | Season |
| Mon, March 20 | March Equinox | Guernsey | Season |
| Sun, March 26 | Daylight Saving Time Starts | Guernsey | Clock Change/daylight Saving Time |
| Mon, March 20 | March Equinox | Guinea | Season |
| Mon, March 20 | March Equinox | Guyana | Season |
| Mon, March 20 | March Equinox | Haiti | Season |
| Sun, March 19 | Father's Day | Honduras | Observance |
| Mon, March 20 | March Equinox | Honduras | Season |
| Wed, March 15 | 1848 Revolution Memorial Day | Hungary | National Holiday |
| Mon, March 20 | March Equinox | Hungary | Season |
| Mon, March 20 | March Equinox | Iceland | Season |
| Wed, March 08 | Imam Mahdi's Birthday | Iran | National Holiday |
| Tue, March 21 | March Equinox | Iran | Season |
| Sun, March 05 | Rebellion Anniversary | Iraq | Regional Holiday |
| Tue, March 21 | March Equinox | Iraq | Season |
| Tue, March 21 | Nowruz | Iraq | Regional Holiday |
| Fri, March 17 | St. Patrick's Day | Ireland | National Holiday |
| Mon, March 20 | March Equinox | Ireland | Season |
| Mon, March 20 | March Equinox | Isle Of Man | Season |
| Sun, March 26 | Daylight Saving Time Starts | Isle Of Man | Clock Change/daylight Saving Time |
| Mon, March 06 | Fast Of Esther | Israel | Observance, Hebrew |
| Mon, March 06 | Purim Eve | Israel | Observance, Hebrew |
| Tue, March 07 | Purim (tel Aviv) | Israel | Local Holiday |
| Wed, March 08 | Shushan Purim (jerusalem) | Israel | Local Holiday |
| Mon, March 20 | March Equinox | Israel | Season |
| Mon, March 20 | March Equinox | Italy | Season |
| Mon, March 20 | March Equinox | Jamaica | Season |
| Fri, March 03 | Dolls' Festival/girls' Festival | Japan | Observance |
| Tue, March 21 | March Equinox | Japan | Season |
| Tue, March 21 | Spring Equinox | Japan | National Holiday |
| Mon, March 20 | March Equinox | Jersey | Season |
| Sun, March 26 | Daylight Saving Time Starts | Jersey | Clock Change/daylight Saving Time |
| Mon, March 20 | March Equinox | Jordan | Season |
| Thu, March 23 | Ramadan Begins | Jordan | Observance |
| Wed, March 08 | International Women's Day | Kazakhstan | Public Holiday |
| Tue, March 21 | March Equinox | Kazakhstan | Season |
| Tue, March 21 | Nauryz | Kazakhstan | Public Holiday |
| Wed, March 22 | Nauryz (day 2) | Kazakhstan | Public Holiday |
| Thu, March 23 | Nauryz (day 3) | Kazakhstan | Public Holiday |
| Tue, March 21 | March Equinox | Kenya | Season |
| Wed, March 08 | International Women's Day | Kiribati | Public Holiday |
| Tue, March 21 | March Equinox | Kiribati | Season |
| Tue, March 21 | March Equinox | Kuwait | Season |
| Wed, March 08 | International Women's Day | Kyrgyzstan | Public Holiday |
| Tue, March 21 | March Equinox | Kyrgyzstan | Season |
| Tue, March 21 | National Holiday "nooruz" | Kyrgyzstan | Public Holiday |
| Wed, March 08 | International Women's Day (women Only) | Laos | Public Holiday |
| Tue, March 21 | March Equinox | Laos | Season |
| Thu, March 09 | Teachers' Day | Lebanon | Observance |
| Mon, March 20 | March Equinox | Lebanon | Season |
| Tue, March 21 | Mother's Day | Lebanon | Observance |
| Sat, March 25 | Feast Of The Annunciation | Lebanon | Public Holiday |
| Sun, March 26 | Daylight Saving Time Starts | Lebanon | Clock Change/daylight Saving Time |
| Sat, March 11 | Moshoeshoe's Birthday | Lesotho | Public Holiday |
| Mon, March 20 | March Equinox | Lesotho | Season |
| Wed, March 08 | Decoration Day | Liberia | Public Holiday |
| Wed, March 15 | J. J. Roberts Birthday | Liberia | Public Holiday |
| Mon, March 20 | March Equinox | Liberia | Season |
| Mon, March 20 | March Equinox | Libya | Season |
| Sat, March 11 | Independence Day/national Day | Lithuania | National Holiday |
| Mon, March 20 | March Equinox | Lithuania | Season |
| Sun, March 26 | Daylight Saving Time Starts | Lithuania | Clock Change/daylight Saving Time |
| Mon, March 20 | March Equinox | Luxembourg | Season |
| Tue, March 21 | March Equinox | Macau | Season |
| Wed, March 08 | International Women's Day | Madagascar | Observance |
| Tue, March 21 | March Equinox | Madagascar | Season |
| Wed, March 29 | Martyrs' Day | Madagascar | Public Holiday |
| Fri, March 03 | Martyrs' Day | Malawi | Public Holiday |
| Mon, March 20 | March Equinox | Malawi | Season |
| Tue, March 21 | March Equinox | Maldives | Season |
| Thu, March 23 | Ramadan Start | Maldives | Public Holiday |
| Mon, March 20 | March Equinox | Mali | Season |
| Sun, March 26 | Martyrs' Day | Mali | Public Holiday |
| Sun, March 19 | Feast Of Saint Joseph | Malta | Public Holiday |
| Fri, March 31 | Freedom Day | Malta | National Holiday |
| Wed, March 01 | Remembrance Day | Marshall Islands | Public Holiday |
| Tue, March 21 | March Equinox | Marshall Islands | Season |
| Mon, March 20 | March Equinox | Martinique | Season |
| Mon, March 20 | March Equinox | Mauritania | Season |
| Wed, March 08 | Holi | Mauritius | Hindu Holiday |
| Sun, March 12 | National Day | Mauritius | Public Holiday |
| Tue, March 21 | March Equinox | Mauritius | Season |
| Wed, March 22 | Ougadi | Mauritius | Public Holiday |
| Sat, March 18 | Oil Expropriation Day | Mexico | Observance |
| Mon, March 20 | March Equinox | Mexico | Season |
| Mon, March 20 | Day Off For Benito Juarez's Birthday Memorial | Mexico | National Holiday |
| Tue, March 21 | Benito Juarez's Birthday Memorial | Mexico | National Holiday |
| Wed, March 01 | Yap Day | Micronesia | Local Holiday |
| Tue, March 21 | March Equinox | Micronesia | Season |
| Fri, March 31 | Micronesia Culture Day (chuuk & Pohnpei) | Micronesia | Local Holiday |
| Wed, March 01 | Martisor (first Day Of Spring) | Moldova | Observance |
| Wed, March 08 | International Women's Day | Moldova | National Holiday |
| Mon, March 20 | March Equinox | Moldova | Season |
| Sun, March 26 | Daylight Saving Time Starts | Moldova | Clock Change/daylight Saving Time |
| Mon, March 20 | March Equinox | Monaco | Season |
| Sun, March 26 | Daylight Saving Time Starts | Monaco | Clock Change/daylight Saving Time |
| Wed, March 01 | Patriots' Day | Mongolia | Observance |
| Wed, March 08 | International Women's Day | Mongolia | Public Holiday |
| Sat, March 18 | Soldiers' Day | Mongolia | Observance |
| Tue, March 21 | March Equinox | Mongolia | Season |
| Mon, March 20 | March Equinox | Montenegro | Season |
| Fri, March 17 | St. Patrick's Day | Montserrat | Public Holiday |
| Mon, March 20 | March Equinox | Montserrat | Season |
| Sun, March 19 | Daylight Saving Time Ends | Morocco | Clock Change/daylight Saving Time |
| Mon, March 20 | March Equinox | Morocco | Season |
| Sun, March 26 | Daylight Saving Time Starts | Morocco | Clock Change/daylight Saving Time |
| Mon, March 20 | March Equinox | Mozambique | Season |
| Thu, March 02 | Peasants' Day | Myanmar | Public Holiday |
| Tue, March 21 | March Equinox | Myanmar | Season |
| Mon, March 27 | Armed Forces' Day | Myanmar | Public Holiday |
| Mon, March 20 | March Equinox | Namibia | Season |
| Tue, March 21 | Independence Day | Namibia | Public Holiday |
| Wed, March 08 | International Women's Day | Nauru | Public Holiday |
| Tue, March 21 | March Equinox | Nauru | Season |
| Mon, March 20 | March Equinox | Netherlands | Season |
| Tue, March 21 | March Equinox | New Caledonia | Season |
| Mon, March 20 | March Equinox | Niger | Season |
| Wed, March 08 | Women's Day | Nigeria | Observance |
| Sun, March 19 | Mothering Sunday | Nigeria | Observance |
| Mon, March 20 | March Equinox | Nigeria | Season |
| Wed, March 08 | International Women's Day | North Korea | Public Holiday |
| Tue, March 21 | March Equinox | North Korea | Season |
| Tue, March 21 | March Equinox | Northern Mariana Islands | Season |
| Fri, March 24 | Commonwealth Covenant Day | Northern Mariana Islands | Public Holiday |
| Mon, March 20 | March Equinox | Norway | Season |
| Sun, March 26 | Daylight Saving Time Starts | Norway | Clock Change/daylight Saving Time |
| Tue, March 21 | March Equinox | Oman | Season |
| Wed, March 15 | Youth Day | Palau | Public Holiday |
| Tue, March 21 | March Equinox | Palau | Season |
| Mon, March 20 | March Equinox | Panama | Season |
| Tue, March 21 | March Equinox | Papua New Guinea | Season |
| Wed, March 01 | Heroes' Day | Paraguay | National Holiday |
| Mon, March 20 | March Equinox | Paraguay | Season |
| Sun, March 26 | Daylight Saving Time Ends | Paraguay | Clock Change/daylight Saving Time |
| Mon, March 20 | March Equinox | Peru | Season |
| Tue, March 21 | March Equinox | Philippines | Season |
| Mon, March 20 | March Equinox | Poland | Season |
| Sun, March 19 | St. Joseph's Day | Portugal | Municipal Holiday |
| Sun, March 19 | Father's Day | Portugal | Observance |
| Mon, March 20 | March Equinox | Portugal | Season |
| Sun, March 26 | Daylight Saving Time Starts | Portugal | Clock Change/daylight Saving Time |
| Thu, March 02 | American Citizenship Day | Puerto Rico | Bank/public Sector Holiday |
| Mon, March 20 | March Equinox | Puerto Rico | Season |
| Wed, March 22 | Emancipation Day | Puerto Rico | Bank/public Sector Holiday |
| Sun, March 05 | March Bank Holiday | Qatar | Bank Holiday |
| Tue, March 21 | March Equinox | Qatar | Season |
| Tue, March 21 | March Equinox | Reunion | Season |
| Wed, March 01 | M?r?i?or | Romania | Observance |
| Wed, March 08 | International Women's Day | Romania | Observance |
| Mon, March 20 | March Equinox | Romania | Season |
| Wed, March 08 | International Women's Day | Russia | National Holiday |
| Tue, March 21 | March Equinox | Russia | Season |
| Thu, March 23 | Ramadan Starts | Russia | Muslim |
| Mon, March 20 | March Equinox | Rwanda | Season |
| Mon, March 20 | March Equinox | Saint Helena | Season |
| Mon, March 20 | March Equinox | Saint Kitts And Nevis | Season |
| Mon, March 20 | March Equinox | Saint Lucia | Season |
| Mon, March 20 | March Equinox | Saint Martin | Season |
| Sun, March 12 | Daylight Saving Time Starts | Saint Pierre And Miquelon | Clock Change/daylight Saving Time |
| Mon, March 20 | March Equinox | Saint Pierre And Miquelon | Season |
| Tue, March 14 | National Heroes Day | Saint Vincent And The Grenadines | Public Holiday |
| Mon, March 20 | March Equinox | Saint Vincent And The Grenadines | Season |
| Tue, March 21 | March Equinox | Samoa | Season |
| Mon, March 20 | March Equinox | San Marino | Season |
| Sat, March 25 | Anniversary Of The Arengo | San Marino | National Holiday |
| Sun, March 26 | Daylight Saving Time Starts | San Marino | Clock Change/daylight Saving Time |
| Tue, March 21 | March Equinox | Saudi Arabia | Season |
| Thu, March 23 | Ramadan Begins | Saudi Arabia | Observance |
| Mon, March 20 | March Equinox | Senegal | Season |
| Mon, March 20 | March Equinox | Serbia | Season |
| Wed, March 08 | International Women's Day | Singapore | Observance |
| Tue, March 21 | March Equinox | Singapore | Season |
| Mon, March 20 | March Equinox | Sint Maarten | Season |
| Mon, March 20 | March Equinox | Slovakia | Season |
| Sat, March 25 | Struggle For Human Rights Day | Slovakia | Observance |
| Tue, March 21 | March Equinox | Solomon Islands | Season |
| Tue, March 21 | March Equinox | Somalia | Season |
| Mon, March 20 | March Equinox | Slovenia | Season |
| Mon, March 20 | March Equinox | South Africa | Season |
| Tue, March 21 | Human Rights Day | South Africa | Public Holiday |
| Wed, March 01 | Independence Movement Day | South Korea | National Holiday |
| Tue, March 21 | March Equinox | South Korea | Season |
| Wed, March 01 | Day Of The Balearic Islands | Spain | Local Holiday |
| Mon, March 06 | Fifth Of March | Spain | Local Holiday |
| Sun, March 19 | San Jose | Spain | Common Local Holiday |
| Mon, March 20 | March Equinox | Spain | Season |
| Sun, March 26 | Daylight Saving Time Starts | Spain | Clock Change/daylight Saving Time |
| Mon, March 20 | March Equinox | St. Barts | Season |
| Mon, March 20 | March Equinox | Sudan | Season |
| Mon, March 20 | March Equinox | Suriname | Season |
| Mon, March 20 | March Equinox | Sweden | Season |
| Sun, March 26 | Daylight Saving Time Starts | Sweden | Clock Change/daylight Saving Time |
| Wed, March 01 | Republic Day | Switzerland | Common Local Holiday |
| Sun, March 19 | Saint Joseph's Day | Switzerland | Common Local Holiday |
| Mon, March 20 | March Equinox | Switzerland | Season |
| Sun, March 26 | Daylight Saving Time Starts | Switzerland | Clock Change/daylight Saving Time |
| Mon, March 20 | March Equinox | Syria | Season |
| Tue, March 21 | Mothers' Day | Syria | Public Holiday |
| Fri, March 31 | Daylight Saving Time Starts | Syria | Clock Change/daylight Saving Time |
| Wed, March 08 | International Women's Day | Taiwan | Observance |
| Fri, March 10 | Kuan Yin's Birthday | Taiwan | Observance |
| Sun, March 12 | Arbor Day | Taiwan | Observance |
| Tue, March 21 | March Equinox | Taiwan | Season |
| Wed, March 29 | Youth Day | Taiwan | Observance |
| Wed, March 08 | International Women's Day | Tajikistan | Public Holiday |
| Tue, March 21 | March Equinox | Tajikistan | Season |
| Tue, March 21 | Navruz Celebration | Tajikistan | Public Holiday |
| Wed, March 22 | Navruz Celebration | Tajikistan | Public Holiday |
| Thu, March 23 | Navruz Celebration | Tajikistan | Public Holiday |
| Fri, March 24 | Navruz Celebration | Tajikistan | Public Holiday |
| Tue, March 21 | March Equinox | Tanzania | Season |
| Tue, March 21 | March Equinox | Thailand | Season |
| Sun, March 12 | Daylight Saving Time Starts | The Bahamas | Clock Change/daylight Saving Time |
| Mon, March 20 | March Equinox | The Bahamas | Season |
| Tue, March 21 | March Equinox | Tonga | Season |
| Mon, March 20 | March Equinox | Trinidad And Tobago | Season |
| Thu, March 30 | Spiritual Baptist Liberation Day | Trinidad And Tobago | Public Holiday |
| Mon, March 20 | March Equinox | Tunisia | Season |
| Mon, March 20 | Independence Day | Tunisia | Public Holiday |
| Tue, March 21 | March Equinox | Turkey | Season |
| Wed, March 08 | International Women's Day | Turkmenistan | Public Holiday |
| Tue, March 21 | March Equinox | Turkmenistan | Season |
| Tue, March 21 | Nowruz Bayram (spring Festival) | Turkmenistan | Public Holiday |
| Wed, March 22 | Nowruz Bayram (spring Festival) | Turkmenistan | Public Holiday |
| Mon, March 13 | Commonwealth Day | Turks And Caicos Islands | Public Holiday |
| Mon, March 20 | March Equinox | Turks And Caicos Islands | Season |
| Mon, March 13 | Commonwealth Day | Tuvalu | Public Holiday |
| Tue, March 21 | March Equinox | Tuvalu | Season |
| Wed, March 08 | International Women's Day | Uganda | Public Holiday |
| Mon, March 20 | March Equinox | Uganda | Season |
| Wed, March 08 | International Women's Day | Ukraine | National Holiday |
| Mon, March 20 | March Equinox | Ukraine | Season |
| Sun, March 26 | Daylight Saving Time Starts | Ukraine | Clock Change/daylight Saving Time |
| Mon, March 20 | March Equinox | Uruguay | Season |
| Mon, March 20 | March Equinox | Us Virgin Islands | Season |
| Fri, March 31 | Transfer Day | Us Virgin Islands | Public Holiday |
| Wed, March 08 | International Women's Day | Uzbekistan | Public Holiday |
| Tue, March 21 | March Equinox | Uzbekistan | Season |
| Tue, March 21 | Navruz | Uzbekistan | Public Holiday |
| Sun, March 05 | Custom Chief's Day | Vanuatu | Public Holiday |
| Mon, March 06 | Day Off For Custom Chief's Day | Vanuatu | Public Holiday |
| Tue, March 21 | March Equinox | Vanuatu | Season |
| Mon, March 13 | Anniversary Of The Election Of Pope Francis | Vatican City | National Holiday |
| Sun, March 19 | St Joseph's Day | Vatican City | National Holiday |
| Mon, March 20 | March Equinox | Vatican City | Season |
| Sun, March 26 | Daylight Saving Time Starts | Vatican City | Clock Change/daylight Saving Time |
| Sun, March 19 | Saint Joseph's Day | Venezuela | Bank Holiday |
| Mon, March 20 | March Equinox | Venezuela | Season |
| Tue, March 21 | March Equinox | Vietnam | Season |
| Tue, March 21 | March Equinox | Wallis And Futuna | Season |
| Tue, March 21 | March Equinox | Yemen | Season |
| Wed, March 08 | International Women's Day | Zambia | Public Holiday |
| Sun, March 12 | Youth Day | Zambia | Public Holiday |
| Mon, March 13 | Day Off For Youth Day | Zambia | Public Holiday |
| Mon, March 20 | March Equinox | Zambia | Season |
| Mon, March 20 | March Equinox | Zimbabwe | Season |
| Wed, March 29 | National Vietnam War Veterans Day | United States | Observance |
| Mon, March 27 | Seward's Day | United States | State Holiday |
| Mon, March 27 | Prince Jonah Kuhio Kalanianaole Day Observed | United States | State Holiday |
| Sun, March 26 | Prince Jonah Kuhio Kalanianaole Day | United States | State Holiday |
| Sat, March 25 | Maryland Day | United States | Local Observance |
| Thu, March 23 | Ramadan Starts | United States | Muslim |
| Mon, March 20 | March Equinox | United States | Season |
| Fri, March 17 | St. Patrick's Day | United States | Observance, Christian |
| Sun, March 12 | Daylight Saving Time Starts | United States | Clock Change/daylight Saving Time |
| Tue, March 07 | Town Meeting Day | United States | State Holiday |
| Tue, March 07 | Purim | United States | Jewish Holiday |
| Fri, March 03 | Employee Appreciation Day | United States | Observance |
| Thu, March 02 | Read Across America Day | United States | Observance |
| Thu, March 02 | Texas Independence Day | United States | State Holiday |
| Wed, March 01 | St. David's Day | United States | Observance, Christian |
| Sun, March 19 | Saint Joseph's Day | Austria | State Holiday |
| Mon, March 20 | March Equinox | Austria | Season |
| Sun, March 26 | Daylight Saving Time Starts | Austria | Clock Change/daylight Saving Time |
| Thu, March 02 | National Flag Day | Bangladesh | Observance |
| Tue, March 07 | Doljatra | Bangladesh | Optional Holiday |
| Wed, March 08 | Holi | Bangladesh | Hindu Holiday |
| Wed, March 08 | Shab E-barat (tentative Date) | Bangladesh | Government Holiday |
| Fri, March 17 | Sheikh Mujibur Rahman's Birthday | Bangladesh | Government Holiday |
| Tue, March 21 | March Equinox | Bangladesh | Season |
| Sun, March 26 | Independence Day | Bangladesh | Government Holiday |
| Tue, March 07 | Holi | Pakistan | Optional Holiday |
| Wed, March 08 | Shab E-barat (tentative Date) | Pakistan | Optional Holiday |
| Tue, March 21 | March Equinox | Pakistan | Season |
| Thu, March 23 | Pakistan Day | Pakistan | Public Holiday |
| Tue, March 21 | March Equinox | Bhutan | Season |
| Sat, March 04 | Anniversary Of The Coronation Of The Sultan Of Terengganu | Malaysia | State Holiday |
| Tue, March 21 | March Equinox | Malaysia | Season |
| Thu, March 23 | First Day Of Ramadan (tentative Date) | Malaysia | State Holiday |
| Thu, March 23 | Birthday Of The Sultan Of Johor | Malaysia | State Holiday |
| Wed, March 08 | Nari Dibas | Nepal | Public Holiday |
| Tue, March 21 | Godhe Yatra | Nepal | Local Holiday |
| Tue, March 21 | March Equinox | Nepal | Season |
| Tue, March 21 | March Equinox | United Arab Emirates | Season |
| Thu, March 23 | Ramadan Start (tentative Date) | United Arab Emirates | Observance |
| Tue, March 07 | Dolyatra | India | Restricted Holiday |
| Tue, March 07 | Holika Dahana | India | Restricted Holiday |
| Wed, March 08 | Holi | India | Gazetted Holiday |
| Tue, March 21 | March Equinox | India | Season |
| Wed, March 22 | Chaitra Sukhladi | India | Restricted Holiday |
| Wed, March 22 | Ugadi | India | Restricted Holiday |
| Wed, March 22 | Gudi Padwa | India | Restricted Holiday |
| Thu, March 30 | Rama Navami | India | Restricted Holiday |