Many decades ago, politicians introduced Daylight Saving Time (DST). Thus, when two people wake up at 7 AM for work, the body clock of the person in the eastern edge may be set to 7 AM, but that of the person on the western edge may be set to 6 AM and the difference between the two clocks leads to health and safety problems. The best explanation for these findings is that the difference between our social clock – set by humans – and our body clock – set by the sun – increases towards the western edges of time zones. Several studies found that the further west people live within a time zone the more health problems they may experience and the shorter they live on average ( Borisenkov, 2011 Gu et al., 2017 VoPham et al., 2018). Body clocks are later relative to the social clock in winter, when nights are longer with earlier sunsets and later sunrises ( Hadlow et al., 2018, 2014 Hashizaki et al., 2018 Kantermann et al., 2007), and body clocks are earlier at the eastern edge of a time zone and become gradually later towards the western edge ( Borisenkov, 2011 Hadlow et al., 2018 Randler, 2008 Roenneberg et al., 2007). We live according to the same social clock time within a time zone, but as long as we still can see the natural day (through windows or on our way to or from work or school), our body clocks still follow more or less the time of the sun clock defined by the sun’s east-west path. Some countries (like China) have combined neighboring time zones to make their time zones bigger, so that the sun needs even longer than 1 hour to cross the time zone. Since country or state lines do not exactly match longitude lines, the time zone of a specific place may not be the same as expected by the longitude lines. This means that the sun rises and sets 4 minutes later every longitude line as it “travels” to the west, taking one hour across the 15 longitude lines that are generally one time zone. The zero line has been defined to go through Greenwich east of London in England. Longitudes are imaginary lines that run between the North and the South Pole and cut the earth into 360 even ‘apple slices’. It takes the sun 4 minutes to cross each longitude from east to west. Although we live according to the same clock time within a time zone (which we will call social clock), our body clocks still receive the timing signal from the sun defined by its east-west path ( sun clock). That is why the sun seems to travel from the east in the morning via its highest point near midday towards the west where it sets in the evening. The best time to post on Instagram on Sunday is 1AM.Ĭall it a case of the Sunday scaries but compared to Saturday, Sunday actually sees a significant amount of engagement.īetween the hours of 1-7AM engagement remains consistent, dropping off as the day goes on before jumping back into action at the 11PM mark.The earth rotates towards the east. The Best Time to Post on Instagram on Sunday Given that Saturday is the start of the weekend, we hypothesize this shift means users are more likely to be enjoying their time offline. Overall, Saturday sees the lowest average engagement throughout the week. The best time to post on Instagram on Saturday is 1AM. The Best Time to Post on Instagram on Saturday While 7AM takes the spot for the best time, we noticed that engagement is pretty consistent between the hours of 5-8AM, too. The best time to post on Instagram on Friday is 7AM. The Best Time to Post on Instagram on Friday The best time to post on Instagram on Thursday is 3AM, with 5AM coming in close as the second-highest time for engagement. The Best Time to Post on Instagram on Thursday Wednesday also tends to see a steady level of engagement between the hours of 2-6AM. The best time to post on Instagram on Wednesday is 3AM. While everyone’s up and early on Monday mornings, by Tuesday are they having more of a lie-in? The Best Time to Post on Instagram on Wednesday The best time to post on Instagram on Tuesday is 7AM. The Best Time to Post on Instagram on Tuesday This could be because it’s the start of the work week and users are eager to interact with content in the early stages of their day, before clocking into office hours. The best time to post on Instagram on Monday is 5AM. Here are the best times to post on Instagram every day of the week: The Best Time to Post on Instagram on Monday We’ve identified that posting earlier in the day yields the best overall engagement. The Best Times to Post on Instagram by Day
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