| Date | Weekday | Holiday or Observance | Calendar |
| Jan 1 | Friday |
Western New Year
|
|
| Jan 6 | Wednesday | Epiphany | |
| Jan 7 | Thursday | Orthodox Christmas | orthodox |
| Jan 14 | Thursday | Orthodox New Year | orthodox |
| Jan 14 | Thursday | Tamil Thai Pongal Day | solar |
| Jan 19 | Tuesday | Aquarius (UTC) | solar |
| Jan 28 | Thursday | Thaipusam | hindu solar |
| Feb 12 | Friday | Chinese New Year / Spring Festival | chinese lunar |
| Feb 12 | Friday | Dangpa Losar / Bhutanese New Year (Year of the Female Iron Ox) | bhutanese lunar |
| Feb 12 | Friday | Losar / Tibetan New Year | tibetan lunar |
| Feb 12 | Friday | Seol-nal / Korean New Year | korean lunar |
| Feb 12 | Friday | Tet Nguyen Dan / Vietnamese New Year | vietnamese lunar |
| Feb 12 | Friday | Tsagaan Sar / Mongolian New Year (Year of the White Cow) | mongolian lunar |
| Feb 16 | Tuesday | Shrove Tuesday / Carnival | easter |
| Feb 17 | Wednesday | Ash Wednesday | easter |
| Feb 18 | Thursday | Pisces (UTC) | solar |
| Feb 26 | Friday | Purim | jewish |
| Mar 8 | Monday |
International Women’s Day
|
|
| Mar 10 | Wednesday | Mi-Carême / Mid-Lent | easter |
| Mar 11 | Thursday | Lailat al Miraj / The Prophet’s Ascension (Umm al-Qura) | muslim |
| Mar 11 | Thursday | Maha Shivaratree | hindu lunar |
| Mar 15 | Monday | Orthodox Clean Monday | orth. easter |
| Mar 16 | Tuesday | Orthodox Shrove Tuesday | orth. easter |
| Mar 17 | Wednesday | Orthodox Ash Wednesday | orth. easter |
| Mar 20 | Saturday | Aries (UTC) | solar |
| Mar 20 | Saturday | Vernal Equinox / Spring (UTC) | solar |
| Mar 28 | Sunday | Lailat al Bara’a / Night of Emancipation (Umm al-Qura) | muslim |
| Mar 28 | Sunday | Palm Sunday | easter |
| Mar 28 | Sunday | Pesach / Jewish Passover | jewish |
| Mar 29 | Monday | Holi Phagwa | hindu lunar |
| Apr 1 | Thursday | Maundy Thursday | easter |
| Apr 2 | Friday | Good Friday | easter |
| Apr 4 | Sunday | Easter | easter |
| Apr 4 | Sunday | Qing Ming Jie / Tomb Sweeping Day | chinese solar |
| Apr 5 | Monday | Easter Monday | easter |
| Apr 13 | Tuesday |
Laotian New Year
|
|
| Apr 13 | Tuesday | Ougadi / Ugaadi | hindu lunar |
| Apr 13 | Tuesday | Start of Ramadan (Umm al-Qura) | muslim |
| Apr 14 | Wednesday | Cambodian New Year | solar |
| Apr 17 | Saturday |
Burmese New Year
|
|
| Apr 19 | Monday | Taurus (UTC) | solar |
| Apr 21 | Wednesday | Ram Navami | hindu lunar |
| Apr 25 | Sunday | Mahavir Jayanti / Janma Kalyanak | hindu lunar |
| Apr 29 | Thursday | Nuzul Quran / Revelation of the Qur’an (Umm al-Qura) | muslim |
| Apr 30 | Friday | Great Prayer Day | easter |
| Apr 30 | Friday | Orthodox Good Friday | orth. easter |
| May 1 | Saturday |
International Labour Day
|
|
| May 1 | Saturday | Orthodox Holy Saturday | orth. easter |
| May 2 | Sunday | Orthodox Easter | orth. easter |
| May 3 | Monday | Orthodox Easter Monday | orth. easter |
| May 7 | Friday | Jumatul Bidah / Friday of Farewell (Umm al-Qura) | muslim |
| May 9 | Sunday | Lailat al Qadr / Night of Destiny (Umm al-Qura) | muslim |
| May 13 | Thursday | Ascension Day | easter |
| May 13 | Thursday | Eid al Fitr / End of Ramadan (Umm al-Qura) | muslim |
| May 17 | Monday | Shavuot | jewish |
| May 20 | Thursday | Gemini (UTC) | solar |
| May 23 | Sunday | Whit Sunday / Pentecost | easter |
| May 24 | Monday | Whit Monday | easter |
| June 3 | Thursday | Corpus Christi | easter |
| June 14 | Monday | Duan Wu Jie / Dragon Boat Festival | chinese lunar |
| June 21 | Monday | Cancer (UTC) | solar |
| June 21 | Monday | Orthodox Pentecost Monday | orth. easter |
| June 21 | Monday | Summer Solstice / Summer (UTC) | solar |
| July 19 | Monday | Arafat Day (Umm al-Qura) | muslim |
| July 20 | Tuesday | Eid al Adha / Feast of Sacrifice (Umm al-Qura) | muslim |
| July 22 | Thursday | Leo (UTC) | solar |
| Aug 9 | Monday | Islamic New Year / Hijra New Year (1443) (Umm al-Qura) | muslim |
| Aug 15 | Sunday | Assumption | |
| Aug 16 | Monday | Parsi New Year | zoroastrian |
| Aug 18 | Wednesday | Ashura (Umm al-Qura) | muslim |
| Aug 21 | Saturday | Onam / Thiruonam | hindu solar |
| Aug 22 | Sunday | Virgo (UTC) | solar |
| Sep 7 | Tuesday | Rosh Hashanah / Jewish New Year (5782) | jewish |
| Sep 10 | Friday | Ganesh Chaturthi / Vinayaka Chaturthi / Chaturthi Paksha | hindu lunar |
| Sep 16 | Thursday | Yom Kippur | jewish |
| Sep 21 | Tuesday | Sukkot | jewish |
| Sep 21 | Tuesday | Zhong Qu Jie / Mid Autumn Festival | chinese lunar |
| Sep 22 | Wednesday | Autumnal Equinox / Fall (UTC) | solar |
| Sep 22 | Wednesday | Libra (UTC) | solar |
| Sep 25 | Saturday | Magal de Touba (Umm al-Qura) | muslim |
| Oct 11 | Monday |
Canadian Thanksgiving
|
|
| Oct 15 | Friday | Dassain | hindu lunar |
| Oct 18 | Monday | Mawlid an Nabi / The Prophet’s Birthday (Umm al-Qura) | muslim |
| Oct 23 | Saturday | Scorpio (UTC) | solar |
| Oct 25 | Monday | Baptism of the Prophet (Umm al-Qura) | muslim |
| Oct 31 | Sunday |
Reformation Day
|
|
| Nov 1 | Monday | All Saints’ Day | |
| Nov 2 | Tuesday | All Souls’ Day | |
| Nov 4 | Thursday | Northern Deepavali / Diwali Amavasya | hindu lunar |
| Nov 4 | Thursday | Southern Deepavali / Diwali Krisna Chaturdasi | hindu lunar |
| Nov 19 | Friday | Guru Nanak Jayanti | hindu lunar |
| Nov 22 | Monday | Sagittarius (UTC) | solar |
| Nov 25 | Thursday |
US Thanksgiving
|
|
| Nov 28 | Sunday |
First Sunday in Advent
|
|
| Dec 5 | Sunday |
Second Sunday in Advent
|
|
| Dec 8 | Wednesday |
Immaculate Conception
|
|
| Dec 12 | Sunday |
Third Sunday in Advent
|
|
| Dec 19 | Sunday |
Fourth Sunday in Advent
|
|
| Dec 21 | Tuesday | Capricorn (UTC) | solar |
| Dec 21 | Tuesday | Winter Solstice / Winter (UTC) | solar |
| Dec 25 | Saturday |
Western Christmas
|
|
| Dec 26 | Sunday |
Boxing Day / Saint Stephen’s Day
|
|
| Dec 31 | Friday |
Western New Year’s Eve
|
Source: https://www.qppstudio.net/global-holidays-observances/2021.htm