Overview

January 27 is the 27th day of the year in the Gregorian calendar. In common years there are 338 days remaining until the year's end; in leap years there are 339. The date falls within the astrological sign of Aquarius and sits in the midst of meteorological winter in the Northern Hemisphere and summer in the Southern Hemisphere. For references about the modern calendar and leap-year rules, see the Gregorian system at the Gregorian calendar and general leap-year information at leap year resources.

Characteristics and calendar details

As a fixed calendar date, January 27 keeps the same position relative to the start of the year but shifts weekday from year to year. In countries using the Gregorian calendar it is often used as a marker for late-month planning, cultural observances and historical anniversaries. When converting dates between calendar systems, such as Julian to Gregorian, the numeric day stays the same while the equivalent weekday and year offset can differ.

History and notable observances

January 27 is widely observed internationally as International Holocaust Remembrance Day. The United Nations designated the date in 2005 to honor victims of the Holocaust; the choice of day commemorates the liberation of the Auschwitz-Birkenau concentration and extermination camp by Soviet forces on January 27, 1945. That liberation is one of the most frequently cited historical events connected to this date.

Common uses and cultural significance

Calendars, almanacs and cultural programs commonly list January 27 among dates for remembrance, local holidays, and anniversaries. It appears in yearly planning cycles, school timetables and media retrospectives. The day is also used by museums, educational institutions and civic organizations to host lectures, exhibitions and commemorative events related to twentieth-century history and human rights.

Examples and distinctions

  • International Holocaust Remembrance Day — observed globally, with ceremonies and educational initiatives.
  • Anniversaries of varied political, scientific and cultural events that fall on this calendar date in different years.

Because January 27 is a fixed-date observance rather than a movable festival tied to lunar cycles or weekdays, it retains consistent placement in annual schedules and is often used for long-term memorial planning and historical commemoration.