Time

Time is a measurement (and according to some just a measurement that represents a specific viewpoint) referring to passage of what is referred to as a continuum (or fixed value, again depending on definition) between occurrences of events.

Famous sayings and observations are that time:

• is a construct (manmade mechanism trying to explain the Universe's chaos, patterns, expanse/collapse, otherwise random events, etc)
• is an illusion
• flies
• waits for no man
• is money
• heals all wounds
• runs forward but never backwards
• stands still (at critical points in your life)
• slows down when you're idle/bored/mourning
• flashes before your eyes (during "near-death experiences" or just before death)

Timer

A Timer is any object or device used to count the duration of a given action. In the case of Click-Stream Analysis (used in Web Analytics) , Behavioral Tracking & Analysis and Behavioral Targeting this equates to timing the interactions that a user makes with a given object on the page.

Tools

• Julian Date/Time to Calendar Date/Time: https://ssd.jpl.nasa.gov/tc.cgi
• Unix Timestamp converter: https://www.unixtimestamp.com/index.php
• Epoch converter: https://www.epochconverter.com/

Resources

• US Military - Systems of Time: https://web.archive.org/web/20190414100443/http://tycho.usno.navy.mil/systime.html
• JSFiddle.net -- BCmoney: Countdown/Sesssion Timer | Inactivity Timer | Countup Timer/Stopwatch
• Clock & Timer JavaScripts: http://www.sivamdesign.com/scripts/clocks.html
• JavaScript Timer (can be modified to be a hidden object to time page interactions): http://web.archive.org/web/20080716044840/http://www.javascript-page.com/timer.html
• Timer.js -- AS3 Timer replica for JavaScript: http://code.ovidiu.ch/timer/
• jQuery Countdown: http://keith-wood.name/countdown.html
• JavaScript sleep function implemented using JS loops, Flash, Java Applet or client-server AJAX request: http://DevCheater.com
• FlipClock.JS: http://flipclockjs.com/
• Moment.js: http://momentjs.com/
• Countdown.js: http://countdownjs.org/
• Moment-Countdown integration: https://github.com/icambron/moment-countdown
• Tock - JS Timer: https://github.com/mrchimp/Tock

Tutorials

• Understanding JavaScript timers: http://javascript.info/tutorial/settimeout-setinterval
• Lessons on setTimeout & setInterval: http://www.jonhartmann.com/index.cfm/2010/4/23/Lessons-on-setTimeout-and-clearTimeout
• JavaScript Timers with setTimeout & setInterval: http://www.elated.com/articles/javascript-timers-with-settimeout-and-setinterval/

• Delay, sleep, pause, wait etc in JavaScript: http://www.jquery4u.com/jquery-functions/delay-sleep-pause-wait/
• Sleep in JS: http://www.phpied.com/sleep-in-javascript/
• Javascript delay / wait / pause routine: http://www.sean.co.uk/a/webdesign/javascriptdelay.shtm
• Yielding with JavaScript Timers: http://answers.oreilly.com/topic/1506-yielding-with-javascript-timers/

• Better JavaScript Timer: http://gent.ilcore.com/2012/06/better-timer-for-javascript.html
• Creating Accurate Timers in JavaScript: http://www.sitepoint.com/creating-accurate-timers-in-javascript/
• JavaScript Timer Congestion: http://fitzgeraldnick.com/weblog/40/
• How to measure time taken by a function to execute: http://stackoverflow.com/questions/313893/how-to-measure-time-taken-by-a-function-to-execute
• How do you get a timestamp in JavaScript?: https://stackoverflow.com/questions/221294/how-do-you-get-a-timestamp-in-javascript
• Measuring Time -- From Java to Kernel and back: https://www.javaadvent.com/2019/12/measuring-time-from-java-to-kernel-and-back.html
• Java 8 – Period and Duration examples: https://www.mkyong.com/java8/java-8-period-and-duration-examples/
• Java Timestamp hashCode() Method: https://javatpoint.com/java-timestamp-hashcode-method
• How to get current timestamps in Java: https://www.mkyong.com/java/how-to-get-current-timestamps-in-java/
• Java Convert Timestamp to Date: https://www.javatpoint.com/java-timestamp-to-date
• Java – How to convert System.nanoTime to Seconds: https://mkyong.com/java/java-how-to-convert-system-nanotime-to-seconds/

External Links

• wikipedia: Time
• wikipedia: Timer
• wikipedia: Stopwatch
• wikipedia: Time value of money
• Accuracy of JavaScript Time: http://ejohn.org/blog/accuracy-of-javascript-time/
• Javascript Madness - The Javascript Sleep Deficiency: http://unixpapa.com/js/sleep.html
• When milliseconds are not enough -- performance.now(): https://developers.google.com/web/updates/2012/08/When-milliseconds-are-not-enough-performance-now
• MDN -- performance.now(): https://developer.mozilla.org/en-US/docs/Web/API/Performance/now
• Timing with JavaScript performance.now(): https://stackoverflow.com/questions/29460040/timing-with-javascript-performance-now
• Javascript - Pausing setInterval(): https://stackoverflow.com/questions/21277900/javascript-pausing-setinterval
• The Unix Epoch-alypse is only 25 years away: https://sqwabb.wordpress.com/2014/12/22/the-unix-epoch-alypse-is-only-25-years-away/
• How Much the Everyday Changes When You Are in a Pandemic: https://flowingdata.com/2021/08/03/time-use-pandemic/
• How We Spent Our Time in 2020 Versus 2019 - To slow the spread of Covid-19, we shifted our everyday activities: https://flowingdata.com/2021/08/03/time-use-pandemic/
• Time Might Not Exist, Physicists Say; Causation Is the Basic Feature of Our Universe: https://singularityhub.com/2022/04/15/time-might-not-exist-physicists-say-causation-is-the-basic-feature-of-our-universe/

See Also

SmartWatch | Scheduling | Date | Timezone | Web Analytics | BT | JS | AJAX | AS | Animation Timing | Project Management