All event countdowns in 2027
January
- New Year's Day
- Bloody Mary Day
- January
- New Moon
- First Quarter Moon
- Martin Luther King Jr Day
- Inauguration Day in US
- Full Moon
- Robert Burns Day
- Australia Day
- Holocaust Memorial Day
- Last Quarter Moon
- Self Assessment Tax Return Deadline
February
- February
- Groundhog Day
- New Moon
- Mardi Gras (Fat Tuesday)
- Pancake Day
- Shrove Tuesday
- Ash Wednesday
- Lent
- Lent (Catholic)
- Valentine's Day
- First Quarter Moon
- Presidents' Day
- Full Moon
- Last Quarter Moon
March
- Saint David's Day
- March
- Mother's Day in the UK
- Commonwealth Day
- New Moon
- Pi Day
- Daylight Saving/Clocks Change in US
- First Quarter Moon
- Saint Patrick's Day
- Spring
- March Equinox
- Palm Sunday
- World Water Day
- Full Moon
- Maundy Thursday
- Good Friday
- Easter
- Clocks Change in UK
- Easter Monday
- Last Quarter Moon
April
- April Fools' Day
- April
- New Moon
- World IoT Day
- First Quarter Moon
- Full Moon
- Queen Elizabeth's Birthday
- Earth Day
- Saint George's Day
- Anzac Day
- Last Quarter Moon
May
- May
- May Day
- Star Wars Day
- Cinco De Mayo
- New Moon
- Mother's Day
- First Quarter Moon
- World Whisky Day
- Full Moon
- World Goth Day
- Towel Day
- Last Quarter Moon
- Memorial Day
- Spring Bank Holiday
June
- June
- New Moon
- First Quarter Moon
- Flag Day in US
- Full Moon
- Father's Day
- Summer
- June Solstice
- Last Quarter Moon
July
- Canada Day
- July
- Independence Day
- New Moon
- First Quarter Moon
- Saint Swithun's Day
- Full Moon
- Last Quarter Moon
August
- August
- New Moon
- First Quarter Moon
- Friday the 13th
- Full Moon
- Last Quarter Moon
- Summer Bank Holiday
- New Moon
September
- September
- Father's Day (Aus/NZ)
- Labor Day
- First Quarter Moon
- Patriot Day
- Full Moon
- Autumn (or Fall)
- September Equinox
- Last Quarter Moon
- New Moon
October
- October
- First Quarter Moon
- Thanksgiving in Canada
- Columbus Day
- Full Moon
- Last Quarter Moon
- New Moon
- Halloween
November
- All Saints' Day
- November
- Election Day in US
- Guy Fawkes Night
- First Quarter Moon
- Singles Day
- Veterans Day
- Remembrance Day
- Remembrance Sunday
- Full Moon
- Beaujolais Nouveau Day
- Last Quarter Moon
- Thanksgiving
- Black Friday
- New Moon
- Cyber Monday
- Cyber Monday in US
- Saint Andrew's Day