All event countdowns in 2028

January

• Leap Year
• January
• New Year's Day
• Bloody Mary Day
• First Quarter Moon
• Full Moon
• Martin Luther King Jr Day
• Last Quarter Moon
• Inauguration Day in US
• Robert Burns Day
• Australia Day
• New Moon
• Holocaust Memorial Day
• Self Assessment Tax Return Deadline

February

• February
• Groundhog Day
• First Quarter Moon
• Full Moon
• Valentine's Day
• Last Quarter Moon
• Presidents' Day
• New Moon
• Mardi Gras (Fat Tuesday)
• Pancake Day
• Shrove Tuesday
• 29th February (Leap Day)

March

• Ash Wednesday
• Lent
• Lent (Catholic)
• Saint David's Day
• March
• First Quarter Moon
• Full Moon
• Daylight Saving/Clocks Change in US
• Commonwealth Day
• Pi Day
• Saint Patrick's Day
• Last Quarter Moon
• Spring
• March Equinox
• World Water Day
• Mother's Day in the UK
• Clocks Change in UK
• New Moon

April

• April
• April Fools' Day
• First Quarter Moon
• Palm Sunday
• World IoT Day
• Full Moon
• Maundy Thursday
• Good Friday
• Easter
• Last Quarter Moon
• Easter Monday
• Queen Elizabeth's Birthday
• Earth Day
• Saint George's Day
• New Moon
• Anzac Day

May

• May
• May Day
• First Quarter Moon
• Star Wars Day
• Cinco De Mayo
• Full Moon
• Mother's Day
• Last Quarter Moon
• World Whisky Day
• World Goth Day
• New Moon
• Towel Day
• Memorial Day
• Spring Bank Holiday
• First Quarter Moon

June

• June
• Full Moon
• Flag Day in US
• Last Quarter Moon
• Father's Day
• Summer
• June Solstice
• New Moon
• First Quarter Moon

July

• Canada Day
• July
• Independence Day
• Full Moon
• Last Quarter Moon
• Saint Swithun's Day
• Summer Olympics 2028
• New Moon
• First Quarter Moon

August

• August
• Full Moon
• Last Quarter Moon
• New Moon
• First Quarter Moon
• Summer Bank Holiday

September

• September
• Father's Day (Aus/NZ)
• Full Moon
• Labor Day
• Patriot Day
• Last Quarter Moon
• New Moon
• Autumn (or Fall)
• September Equinox
• First Quarter Moon

October

• October
• Full Moon
• Thanksgiving in Canada
• Columbus Day
• Last Quarter Moon
• Friday the 13th
• New Moon
• First Quarter Moon
• Halloween

November

• All Saints' Day
• November
• Full Moon
• Guy Fawkes Night
• Election Day in US
• Last Quarter Moon
• Veterans Day
• Singles Day
• Remembrance Day
• Remembrance Sunday
• Beaujolais Nouveau Day
• New Moon
• Thanksgiving
• Black Friday
• First Quarter Moon
• Cyber Monday in US
• Cyber Monday
• Saint Andrew's Day

December

• December
• Full Moon
• Last Quarter Moon
• New Moon
• Winter
• December Solstice
• First Quarter Moon
• Christmas Eve
• Christmas Day
• Boxing Day
• New Year's Eve
• Full Moon