January 28

Updated November 6, 2026 · Edited by the JanuaryCalendar.com team

January 28 is Data Privacy Day, also called Data Protection Day, marking the day in 1981 when the first binding international data protection treaty opened for signature. The date is remembered for the 1986 Challenger disaster, and it also saw Pride and Prejudice published and the LEGO brick patent filed.

January 28 is the 28th day of the year in the Gregorian calendar. 337 days remain in the year (338 in leap years). In 2027, January 28 falls on a Thursday.

Day of year
28
Days left
337 (338 in leap years)
Zodiac sign
Aquarius ♒︎
Birthstone
Garnet
ISO week (2027)
Week 4
Weekday (2027)
Thursday

Holidays and observances on January 28

  • Official Data Privacy Day (Data Protection Day) (US, Canada and Europe) — Marks the opening of Council of Europe Convention 108 for signature in 1981.
  • Cultural Lunar New Year falls on January 28 in 2036 (Dragon)
  • Astronomy Full moon (Wolf Moon) on January 28 in 2021 (Eastern Time)

Events on January 28 in history

  • 1813 – Jane Austen's novel Pride and Prejudice was first published in London.
  • 1871 – France signed an armistice with Prussia, ending the four-month Siege of Paris.
  • 1887 – Work began on the foundations of the Eiffel Tower in Paris.
  • 1915 – President Woodrow Wilson signed the act that created the US Coast Guard.
  • 1932 – Japanese forces attacked Shanghai, starting a weeks-long battle with Chinese troops.
  • 1956 – Elvis Presley made his first national television appearance on CBS's Stage Show.
  • 1958 – The LEGO Group filed the patent application for its interlocking plastic brick in Denmark.
  • 1981 – Convention 108, the first binding international treaty on data protection, opened for signature at the Council of Europe.
  • 1985 – Dozens of leading artists recorded the charity single We Are the World in Los Angeles.
  • 1986 – Space Shuttle Challenger broke apart 73 seconds after launch, killing all seven crew members, including teacher Christa McAuliffe.

Famous birthdays on January 28

  • 1841 – Henry Morton Stanley, Welsh-American explorer of Africa
  • 1853 – José Martí, Cuban poet and independence leader
  • 1873 – Colette, French novelist, author of Gigi
  • 1887 – Arthur Rubinstein, Polish-American concert pianist
  • 1912 – Jackson Pollock, American abstract expressionist painter
  • 1929 – Claes Oldenburg, Swedish-American pop art sculptor
  • 1936 – Alan Alda, American actor, star of M*A*S*H
  • 1955 – Nicolas Sarkozy, President of France, 2007–2012
  • 1968 – Sarah McLachlan, Canadian singer-songwriter
  • 1981 – Elijah Wood, American actor

What day is January 28?

YearDay of the weekISO week
2026Wednesday5
2027Thursday4
2028Friday4
2029Sunday4
2030Monday5
2031Tuesday5
2032Wednesday5
2033Friday4
2034Saturday4

January 2027

January 2027 calendar
SundayMondayTuesdayWednesdayThursdayFridaySaturday
12
3456789
10111213141516
17181920212223
24252627282930
31

Frequently asked questions

What is Data Privacy Day on January 28?

It is an annual awareness day about protecting personal data, known in Europe as Data Protection Day. It marks January 28, 1981, when the Council of Europe opened Convention 108 for signature.

What happened on January 28, 1986?

Space Shuttle Challenger broke apart 73 seconds after liftoff from Kennedy Space Center, killing its seven crew members. The Rogers Commission traced the cause to a failed O-ring seal in a solid rocket booster.

What day of the week is January 28, 2027?

January 28, 2027 is a Thursday. In 2028 it falls on a Friday.

What zodiac sign is January 28?

People born on January 28 are Aquarians (January 20 – February 18) in Western astrology.