Overview

April 24 is the 114th day of common years and the 115th day in leap years in the modern Gregorian calendar. In a typical year there are 251 days remaining after April 24. The date sits in late April and, depending on the hemisphere, is associated with spring in the Northern Hemisphere and autumn in the Southern Hemisphere.

Calendar position and seasonal notes

As the fourth month’s 24th day, April 24 falls inside the astrological sign of Taurus (approximately April 20–May 20). It is a fixed calendar date rather than a movable feast — although religious and cultural holidays that depend on lunar cycles or Easter sometimes fall near it. Its placement in the year makes it a frequent choice for seasonal remembrance events and springtime ceremonies.

Historical events and observances

Certain events that began or are commemorated on April 24 have received international attention. Among the most widely recognized are the mass arrests of Armenian community leaders in Constantinople in 1915, remembered as the start of the Armenian Genocide, and the outbreak of the 1916 Easter Rising in Ireland, when Irish republicans launched an insurrection against British rule. Another notable milestone is the launch of the Hubble Space Telescope on April 24, 1990, a major event in modern astronomy and space science.

Uses, public observances and examples

  • Remembrance: Some countries and communities use April 24 for national or cultural memorials tied to historical events.
  • Science and education: The anniversary of space and scientific milestones on this date is sometimes marked by public lectures and outreach.
  • Seasonal activities: In many temperate regions the date falls during flowering and planting seasons, influencing festivals and local traditions.

Notable distinctions and trivia

April 24 combines cultural memory with scientific anniversaries, making it a date that appears in both historical and technical timelines. Because it is fixed in the Gregorian calendar, its weekday shifts from year to year; in leap years the ordinal day count increases by one. For readers seeking date-specific details or lists of events and births on April 24, historical chronologies and encyclopedic date compendia provide complete day-by-day records.