<p>Several factors are proven to affect our experience of time. Those that differ from one day to the next include:</p>

<ul>
<li><p><strong>Biochemistry affects our perception of time.</strong></p>

<blockquote>
  <p>Stimulants produce overestimates of time duration, whereas depressants and anesthetics produce underestimates of time duration.
  <a href="http://en.wikipedia.org/wiki/Time_perception">http://en.wikipedia.org/wiki/Time_perception</a></p>
</blockquote></li>
<li><p><strong>Fear affects our perception of time:</strong></p>

<blockquote>
  <p>Hammond points to a study in which people with arachnophobia were asked to look at spiders — the very object of their intense fear — for 45 seconds and they overestimated the elapsed time. The same pattern was observed in novice skydivers, who estimated the duration of their peers’ falls as short, whereas their own, from the same altitude, were deemed longer</p>
  
  <p>When a person is scared, a brain area called the amygdala becomes more active, laying down an extra set of memories that go along with those normally taken care of by other parts of the brain.</p>
  
  <p>"In this way, frightening events are associated with richer and denser memories," Eagleman explained. "And the more memory you have of an event, the longer you believe it took." 
  <a href="http://www.brainpickings.org/2013/07/15/time-warped-claudia-hammond/">http://www.brainpickings.org/2013/07/15/time-warped-claudia-hammond/</a>
  <a href="http://www.livescience.com/2117-time-slow-emergencies.html">http://www.livescience.com/2117-time-slow-emergencies.html</a>
  <a href="http://en.wikipedia.org/wiki/Time_perception">http://en.wikipedia.org/wiki/Time_perception</a></p>
</blockquote></li>
<li><p><strong>Our attention affects our perception of time:</strong></p>

<blockquote>
  <p>Wearden et al. (2014) administered a questionnaire which asked about passage of time in different drug and emotional states, and generally found that situations associated with “distraction” from time were associated with faster passage of time, in accord with the idea that “attention to time” is an important determinant of time judgements. 
  <a href="http://www.mind-and-brain.de/postdoctoral-program/scientific-events/archive/time/">http://www.mind-and-brain.de/postdoctoral-program/scientific-events/archive/time/</a></p>
</blockquote></li>
<li><p><strong>Having fun(or not):</strong></p>

<blockquote>
  <p>When this was tested by Kellaris (1992), they found that when listeners enjoyed the music more, time seemed to slow down.</p>
  
  <p>Or—prepare yourself for a 180 degree about-face—it could all be the other way around. Perhaps you’re having fun when time flies. In other words, we assume we’ve been enjoying ourselves when we notice that time has passed quickly.</p>
  
  <p>There’s evidence for this in a recent experiment by Sackett et al. (2010). Participants doing a boring task were tricked into thinking it had lasted half as long as it really had. They thought it was more enjoyable than those who had been doing exactly the same task but who hadn’t been tricked about how much time had passed.</p>
</blockquote></li>
<li><p><strong>Being tired:</strong></p>

<blockquote>
  <p>When we’re tired, though, our perception of time goes awry and we find it more difficult to distinguish between short spaces of time. This fact can be used to measure whether people are too tired to fly a plane, drive a truck or be a doctor. Indeed just such simple hand-held devices that quickly assess your tiredness are already being developed (Eagleman, 2009).
  <a href="http://www.spring.org.uk/2011/06/10-ways-our-minds-warp-time.php">http://www.spring.org.uk/2011/06/10-ways-our-minds-warp-time.php</a></p>
</blockquote></li>
<li><p><strong>Emotional self-regulation:</strong></p>

<blockquote>
  <p>The effort of trying to either suppress or enhance our emotional reactions seems to change our perception of time. Psychologists have found that when people are trying to regulate their emotions, time seems to drag on.</p>
  
  <p>Vohs and Schmeichel (2003) had participants watch an 11 minute clip from the film Terms of Endearment. Some participants were asked to remain emotionally neutral while watching the clip and others were told to act naturally. Those who tried to suppress their emotions estimated the clip had lasted longer than it really had.
  <a href="http://www.spring.org.uk/2011/06/10-ways-our-minds-warp-time.php">http://www.spring.org.uk/2011/06/10-ways-our-minds-warp-time.php</a></p>
</blockquote></li>
<li><p><strong>Body temperature:</strong></p>

<blockquote>
  <p>Experiments have found that when body temperature is raised our perception of time speeds up (Wearden &amp; Pento-Voak, 1995). Conversely when we are cooled down, our sense of time also slows down.
  <a href="http://www.spring.org.uk/2011/06/10-ways-our-minds-warp-time.php">http://www.spring.org.uk/2011/06/10-ways-our-minds-warp-time.php</a></p>
</blockquote></li>
</ul>

CC BY-SA 3.0
2016-01-19T05:47:20.873Z
Berit Larsen-That was very interesting.Thank you for sharing.
user5434678
CC BY-SA 4.0
2020-09-19T18:34:35.723Z
Also substances such as coffee can speed up the perception of time. I read this in an interesting book about time from 2014: [“Zeit: Der Stoff, aus dem das Leben ist” (Stefan Klein)](https://books.google.lt/books?id=IzylAwAAQBAJ&printsec=frontcover&dq=stefan+klein+zeit&hl=en&sa=X&ved=2ahUKEwj6s-L77PXrAhViiYsKHffeDJ8Q6AEwAHoECAUQAg#v=snippet&q=kaffee&f=false)
Avatar
CC BY-SA 3.0
2014-12-18T11:41:00.617Z
2014-12-18T11:41:00.617Z
Berit Larsen
<p>As per the title, why is it some days it just feels like a day can go so fast, yet other days can feel slow? Every day has the same amount of hours, minutes and seconds after all. What is the actual science behind our state of mind when we feel like this?</p>

CC BY-SA 3.0
2014-03-10T17:34:55.253Z
Aside: "Put your hand on a hot stove for a minute, and it seems like an hour. Sit with a pretty girl for an hour, and it seems like a minute. That's relativity." - Albert Einstein (apparently)
Eoin
CC BY-SA 3.0
2014-03-10T18:44:02.240Z
Definitely related to [time perception](http://en.wikipedia.org/wiki/Time_perception)
BenCole
CC BY-SA 3.0
2014-03-11T05:12:11.850Z
As the time perception article that Ben mentions points out, there are many things that impact time perception. If you get into a flow state where you are working very efficiently and your mind is consumed by the task, time seems to pass very quickly. If you are in a state of anticipation, waiting for or dreading of something happening, time will seem to pass more slowly. This also occurs when you are bored and waiting for the end of the school or work day. The interesting thing is mindfulness. If you enter the flow state while very mindful, time seems to slow, again.
John Yetter
CC BY-SA 4.0
2019-11-26T03:40:05.543Z
Follow up question, how come sometimes we can get into this flow state and still feel as if time is moving slowly?
user24794
<cognitive-psychology><time><mood>
Why do some days feel fast and others feel slow?
Daveo
# Why do some days feel fast and others feel slow?

(Asked by: username_0 on 2014-03-10)

As per the title, why is it some days it just feels like a day can go so fast, yet other days can feel slow? Every day has the same amount of hours, minutes and seconds after all. What is the actual science behind our state of mind when we feel like this?

**Tags:** cognitive-psychology, time, mood

> **Comments:**
> **username_1**: Aside: "Put your hand on a hot stove for a minute, and it seems like an hour. Sit with a pretty girl for an hour, and it seems like a minute. That's relativity." - Albert Einstein (apparently)  
> **username_2**: Definitely related to [time perception](http://en.wikipedia.org/wiki/Time_perception)  
> **username_3**: As the time perception article that Ben mentions points out, there are many things that impact time perception. If you get into a flow state where you are working very efficiently and your mind is consumed by the task, time seems to pass very quickly. If you are in a state of anticipation, waiting for or dreading of something happening, time will seem to pass more slowly. This also occurs when you are bored and waiting for the end of the school or work day. The interesting thing is mindfulness. If you enter the flow state while very mindful, time seems to slow, again.  
> **username_4**: Follow up question, how come sometimes we can get into this flow state and still feel as if time is moving slowly?  

---

## 1 answers

### Answer by username_5 on 2014-12-18. Score: 21 | Accepted answer

Several factors are proven to affect our experience of time. Those that differ from one day to the next include:

* **Biochemistry affects our perception of time.**

  > Stimulants produce overestimates of time duration, whereas depressants and anesthetics produce underestimates of time duration.
  > <http://en.wikipedia.org/wiki/Time_perception>
* **Fear affects our perception of time:**

  > Hammond points to a study in which people with arachnophobia were asked to look at spiders — the very object of their intense fear — for 45 seconds and they overestimated the elapsed time. The same pattern was observed in novice skydivers, who estimated the duration of their peers’ falls as short, whereas their own, from the same altitude, were deemed longer
  >
  > When a person is scared, a brain area called the amygdala becomes more active, laying down an extra set of memories that go along with those normally taken care of by other parts of the brain.
  >
  > "In this way, frightening events are associated with richer and denser memories," Eagleman explained. "And the more memory you have of an event, the longer you believe it took."
  > <http://www.brainpickings.org/2013/07/15/time-warped-claudia-hammond/>
  > <http://www.livescience.com/2117-time-slow-emergencies.html>
  > <http://en.wikipedia.org/wiki/Time_perception>
* **Our attention affects our perception of time:**

  > Wearden et al. (2014) administered a questionnaire which asked about passage of time in different drug and emotional states, and generally found that situations associated with “distraction” from time were associated with faster passage of time, in accord with the idea that “attention to time” is an important determinant of time judgements.
  > <http://www.mind-and-brain.de/postdoctoral-program/scientific-events/archive/time/>
* **Having fun(or not):**

  > When this was tested by Kellaris (1992), they found that when listeners enjoyed the music more, time seemed to slow down.
  >
  > Or—prepare yourself for a 180 degree about-face—it could all be the other way around. Perhaps you’re having fun when time flies. In other words, we assume we’ve been enjoying ourselves when we notice that time has passed quickly.
  >
  > There’s evidence for this in a recent experiment by Sackett et al. (2010). Participants doing a boring task were tricked into thinking it had lasted half as long as it really had. They thought it was more enjoyable than those who had been doing exactly the same task but who hadn’t been tricked about how much time had passed.
* **Being tired:**

  > When we’re tired, though, our perception of time goes awry and we find it more difficult to distinguish between short spaces of time. This fact can be used to measure whether people are too tired to fly a plane, drive a truck or be a doctor. Indeed just such simple hand-held devices that quickly assess your tiredness are already being developed (Eagleman, 2009).
  > <http://www.spring.org.uk/2011/06/10-ways-our-minds-warp-time.php>
* **Emotional self-regulation:**

  > The effort of trying to either suppress or enhance our emotional reactions seems to change our perception of time. Psychologists have found that when people are trying to regulate their emotions, time seems to drag on.
  >
  > Vohs and Schmeichel (2003) had participants watch an 11 minute clip from the film Terms of Endearment. Some participants were asked to remain emotionally neutral while watching the clip and others were told to act naturally. Those who tried to suppress their emotions estimated the clip had lasted longer than it really had.
  > <http://www.spring.org.uk/2011/06/10-ways-our-minds-warp-time.php>
* **Body temperature:**

  > Experiments have found that when body temperature is raised our perception of time speeds up (Wearden & Pento-Voak, 1995). Conversely when we are cooled down, our sense of time also slows down.
  > <http://www.spring.org.uk/2011/06/10-ways-our-minds-warp-time.php>

> **Comments:**
> **username_6**: username_5-That was very interesting.Thank you for sharing.  
> **username_7**: Also substances such as coffee can speed up the perception of time. I read this in an interesting book about time from 2014: [“Zeit: Der Stoff, aus dem das Leben ist” (Stefan Klein)](https://books.google.lt/books?id=IzylAwAAQBAJ&printsec=frontcover&dq=stefan+klein+zeit&hl=en&sa=X&ved=2ahUKEwj6s-L77PXrAhViiYsKHffeDJ8Q6AEwAHoECAUQAg#v=snippet&q=kaffee&f=false)  

---

