Edgepedia

Time-use diary

A time-use diary is a survey instrument in which a respondent records the activities of a single day in sequence, with how long each lasted.

Time-use survey

A time-use survey is a social-science method in which respondents record their activities over a 24-hour day, producing time budgets that measure unpaid work, leisure, and gender gaps.

Time-varying optimization

Time-varying optimization is the task of minimizing a convex problem whose objective and feasible set change continuously in time, so algorithms track the moving optimum rather than converge.

Time-varying parameter vector autoregression

A time-varying parameter vector autoregression (TVP-VAR) is a multivariate time-series model whose coefficients, and often error variances, evolve over time, used to study how economic relationships change across decades.

Oct 10, 2026

Time-weighted return

Time-weighted return (TWR) measures the compound growth rate of invested capital, independent of when investors deposit or withdraw money, and is the standard method for fund performance reporting under GIPS.

Time-windowed path planning

Time-windowed path planning is a family of multi-agent path planning methods that plan or validate each agent's route only over a bounded time window, making collision-free coordination of many robots tractable in warehouses.

Time–frequency analysis

Time–frequency analysis is a family of signal-processing methods that represent a signal in time and frequency at once, revealing how its frequency content changes over time.

Time–frequency representation

A time–frequency representation is a signal processing method that maps a signal's energy over time and frequency at once, with the spectrogram as the standard example.

Time–temperature superposition

Time–temperature superposition (TTS) is a rheology method that shifts modulus data from several temperatures onto one master curve, extending the measurable time or frequency range.

Time's 10 Best Graphic Novels

Time's 10 Best Graphic Novels is an unranked ten-title list of the best graphic novels of all time, compiled by Time book critic Lev Grossman around 2005 because of Watchmen.

Oct 20, 2026

Timea Nagy

Tímea Nagy, a Hungarian épée fencer born in 1970, is renowned for her Olympic gold medals in 2000 and 2004 and her five team world titles.

Timecop

Timecop is a 1994 American science-fiction action film directed by Peter Hyams, starring Jean-Claude Van Damme as a federal agent pursuing a corrupt senator through time.

Timecrimes

Timecrimes (Los Cronocrímenes) is Nacho Vigalondo's 2007 Spanish time-loop thriller debut, starring Karra Elejalde as a man who becomes his own masked attacker after one accidental trip back an hour.

TIMED

TIMED (Thermosphere Ionosphere Mesosphere Energetics and Dynamics) is a NASA satellite launched in 2001 to study the mesosphere and lower thermosphere/ionosphere, Earth's least explored atmospheric layer, at altitudes of roughly 60 to 180 km.

Timed artificial insemination protocol

A timed artificial insemination (TAI) protocol uses hormonal treatments to synchronize ovulation in cows, allowing scheduled insemination without detecting estrus, as in the Ovsynch program.

Timed automaton

A timed automaton (plural: timed automata) is a finite automaton extended with real-valued clocks that can be reset and compared against constants, introduced by Rajeev Alur and David L. Dill.

Timed elastic band

The timed elastic band (TEB) is a local trajectory optimization method for mobile robots that deforms a global path into a time-parameterized trajectory, introduced in 2012.

Timed Up and Go test

The Timed Up and Go (TUG) test times a person rising from a chair, walking 3 meters, turning, and sitting back down, screening for fall risk in older adults.

Sep 19, 2026

Timee

Timee, Inc. (株式会社タイミー) is a Tokyo-based company operating Japan's largest spot-work platform, founded by Ryo Ogawa in 2017 and listed on the TSE Growth market in 2024.

Timekeeping on Mars

Timekeeping on Mars measures time in sols of 24 hours, 39 minutes, and 35 seconds, using stretched 24-hour clocks, local solar times, and sol counts kept by landed missions.

Timeless (Meghan Trainor album)

Timeless is Meghan Trainor's sixth studio album, released June 7, 2024 on Epic Records; 17 tracks blending doo-wop pop with modern production, featuring T-Pain, Lawrence, and Niecy Nash, peaking at No. 27 on the Billboard 200.

Timeless (The Weeknd and Playboi Carti song)

"Timeless" is a 2024 song by the Weeknd and Playboi Carti, produced by Pharrell Williams, that debuted at No. 3 on the Billboard Hot 100.

Oct 3, 2026

Timeless Bottomless Bad Movie

Timeless Bottomless Bad Movie (나쁜 영화, Nappeun Yeonghwa) is a 1997 South Korean experimental film by Jang Sun-woo mixing documentary and fiction about Seoul street kids and homeless men, shot in 35mm, 16mm and Digital-8.

Timeless Test

Timeless Test: a Test cricket match with no time limit, played until a win or tie. The last and longest, South Africa v England at Durban, March 1939, ran 10 playing days and 43 hours 16 minutes before being abandoned as a draw.

Timeline

Timeline: a visual or written line showing related events in chronological order, from oldest to most recent; also a project schedule. Related to chronology, used in history education and digital tools.

Timeline (2003 film)

Timeline is a 2003 American science-fiction adventure film directed by Richard Donner, based on Michael Crichton's 1999 novel, in which archaeology students travel through a wormhole to 14th-century France.

Timeline Follow-Back

The Timeline Follow-Back (TLFB) is a calendar-based interview method that estimates daily alcohol or drug use over up to three months, developed by Linda Sobell and colleagues in 1986.

Timeline for September following the September 11 attacks

Chronology of September 11–30, 2001 after the 9/11 attacks: AUMF passage and signing, NYSE reopening and Dow drop, Taliban ultimatums, NATO Article 5, Operation Enduring Freedom naming, anthrax mailings, and early homeland-security measures.

Timeline for the day of the September 11 attacks

The timeline for the day of the September 11 attacks records the events of September 11, 2001, from the first hijacked takeoff to the North Tower's collapse.