2018 / Movable observances:
A movable holiday means the date changes every year!
.......................................................................................................................................
- National Corndog Day (United States): March 17
First Thursday: March 1
- World Book Day (UK and Ireland)
- World Maths Day
School day closest to March 2: March 2
- Read Across America Day
First Friday: March 2
- Employee Appreciation Day (United States, Canada)
Second Saturday of Lent in Eastern Christianity: March 3
- Saturday of Souls
Fifth Sunday before Pascha and Second Sunday of Lent in Eastern Christianity: March 4
- Sunday of St. Gregory Palamas
First Sunday: March 4
- Children's Day (New Zealand)
Second week: March 4–10
- Global Money Week
Week of March 8: March 4–10
- Women of Aviation Worldwide Week
First Monday: March 5
- Casimir Pulaski Day (United States)
First Tuesday: March 6
- Grandmother's Day (France)
Second Thursday: March 8
- World Kidney Day
Third Saturday of Lent in Eastern Christianity: March 10
- Saturday of Souls
Fourth Sunday before Pascha and third Sunday of Lent in Eastern Christianity: March 11
- Sunday of the Holy Cross
Fourth Sunday of Lent, 21 days before Easter Sunday in Western Christianity: March 11
- Laetare Sunday
- Mothering Sunday
- Pretzel Sunday (Luxembourg)
Monday closest to March 9, unless March 9 falls on a Saturday: March 12
- Baron Bliss Day (Belize)
Second Monday: March 12
- Canberra Day (Australia)
- Commonwealth Day (Commonwealth of Nations)
Second Wednesday: March 14
- Decoration Day (Liberia)
- No Smoking Day (United Kingdom)
Friday of the second full week of March: March 16
- World Sleep Day
Fourth Saturday of Lent in Eastern Christianity: March 17
- Saturday of Souls
Firth Sunday of Lent in Western Christianity: March 18
- Passion Sunday: March 18 (no longer officially celebrated by Roman Catholic church, still celebrated by other denominations)
Third Sunday before Pascha and Fourth Sunday of Lent in Eastern Christianity: March 18
- Sunday of St. John Climacus
Third week in March: 18–24
- National Poison Prevention Week (United States)
Third Monday: March 19
- Birthday of Benito Juarez (Mexico)
March equinox: March 20
- Chunfen (East Asia)
- Dísablót (some Asatru groups)
- Earth Equinox Day
- Equinox of the Gods/New Year (Thelema)
- Higan (Japan)
- International Astrology Day
- Mabon (Southern Hemisphere) (Neo-paganism)
- Ostara (Northern hemisphere) (Neo-paganism)
- Shunbun no Hi (Japan)
- Sigrblót (The Troth)
- Summer Finding (Asatru Free Assembly)
- Sun-Earth Day (United States)
- Vernal Equinox Day / Kōreisai (Japan)
- World Storytelling Day
Third Wednesday: March 21
- National Festival of Trees (Netherlands)
Fifth Saturday of Lent in Eastern Christianity: March 24
- Saturday of the Akathist
Last Saturday: March 24
- Earth Hour (International observance)
Fifth Sunday of Lent in Eastern Christianity: March 25
- Sunday of St. Mary of Egypt
Week before Easter in Western Christianity: March 25-31
- Holy Week
- Palm Sunday: March 25
- Holy Monday: March 26
- Holy Tuesday: March 27
- Holy Wednesday: March 28
- Maundy Thursday: March 29
- Good Friday: March 30
- Holy Saturday: March 31
Fourth Monday: March 26
- Labour Day (Christmas Island, Australia)
Last Monday: March 26
- Seward's Day (Alaska, United States)
Fourth Tuesday: March 27
- American Diabetes Alert Day (United States)
Friday preceding Good Friday in Eastern Christianity: March 30
- Nabi Musa
Day before Palm Sunday in Eastern Christianity: March 31
- Lazarus Saturday
- Lazareva Subota (Serbia)