Units and measurements

• Quart
  Quart
  The quart is a unit of volume equal to a quarter of a gallon, two pints, or four cups. Since gallons of various sizes have historically been in use, quarts of various sizes have also existed; see gallon for further discussion. Three of these kinds of quarts remain in current use, all approximately...
  
  , a measure of volume in traditional systems of units
• Quarter, a unit of mass in Imperial unit
  Imperial unit
  The system of imperial units or the imperial system is the system of units first defined in the British Weights and Measures Act of 1824, which was later refined and reduced. The system came into official use across the British Empire...
  
  s, equal to 2 stones or a quarter of a long hundredweight; one quarter = 12.70058636 kg
• QT interval
  QT interval
  In cardiology, the QT interval is a measure of the time between the start of the Q wave and the end of the T wave in the heart's electrical cycle. In general, the QT interval represents electrical depolarization and repolarization of the left and right ventricles...
  
  , a measurement used in cardiology

Businesses and products

• QuikTrip
  QuikTrip
  QuikTrip is a Tulsa-based chain of convenience stores primarily found in the Midwestern and Southern United States....
  
  , a convenience store chain
• "Quiet Trader", a trademark applied to the cargo version of the BAe 146
  BAe 146
  The British Aerospace 146 is a medium-sized commercial airliner formerly manufactured in the United Kingdom by British Aerospace, later part of BAE Systems. Production ran from 1983 until 2002. Manufacture of an improved version known as the Avro RJ began in 1992...
  
   jet
• Quadra-Trac, a four-wheel-drive system developed by Jeep
• QT Inc.
  QT Inc.
  QT Incorporated is the manufacturer of the Q-Ray ionized bracelet. It is headed by the infomercial entrepreneur Que Te "Andrew" Park.-2003 FTC injunction:...
  
  , manufacturer of the "Q-Ray" bracelet

Computing

• Qt (framework), a cross platform graphical widget toolkit for the development of GUI computer programs
• QuickTime
  QuickTime
  QuickTime is an extensible proprietary multimedia framework developed by Apple Inc., capable of handling various formats of digital video, picture, sound, panoramic images, and interactivity. The classic version of QuickTime is available for Windows XP and later, as well as Mac OS X Leopard and...
  
  , a multimedia technology from Apple Inc.

Miscellaneous

• On the QT, a colloquialism meaning quietly or secretly; may be an abbreviation for "on the quiet."
• QT: QueerTelevision
  QT: QueerTelevision
  QT: QueerTelevision was a Canadian television newsmagazine series, which aired on Citytv and CablePulse 24 in the late 1990s. Focusing on lesbian, gay, bisexual and transgender issues, the series was hosted by Irshad Manji...
  
  , an LGBT newsmagazine which aired on Canada's CityTV in the 1990s
• Question Time (TV series)
  Question Time (TV series)
  Question Time is a topical debate BBC television programme in the United Kingdom, based on Any Questions?. The show typically features politicians from at least the three major political parties as well as other public figures who answer questions put to them by the audience...
  
  , a weekly TV political debate, broadcast on BBC One in the UK
• Qiryat Tivon
  Qiryat Tivon
  Kiryat Tiv'on is a town in the Haifa District of Israel, in the hills between the Zvulun and Jezreel valleys. Kiryat Tiv'on is situated southeast of Haifa, on the main road to Nazareth. On the outskirts of Tiv'on is a Bedouin township called Basmat Tab'un...
  
  , a local council in the Haifa District of Israel
• Quantification theory, a formal system of logic, also known as predicate calculus
• Quality time
  Quality time
  Quality time is an informal reference to time spent with loved ones which is in some way important, special, productive or profitable. It is time that is set aside for paying full and undivided attention to the person or matter at hand...
  
  , is an informal reference to time spent with loved ones (e.g., close family, partners or friends) which is in some way important, special, productive or profitable
• Quiet Time
  Quiet Time
  Quiet Time is a regular individual session of Christian spiritual activities, most notably prayer and/or private study of the Bible. The term "Quiet Time" is used by 20th-century Protestants, mostly evangelical Christians. It is also called "personal Bible study" or "personal devotions"...
  
  , a Christian devotional practice