Editing 1799: Bad Map Projection: Time Zones

Jump to: navigation, search

Warning: You are not logged in. Your IP address will be publicly visible if you make any edits. If you log in or create an account, your edits will be attributed to your username, along with other benefits.

The edit can be undone. Please check the comparison below to verify that this is what you want to do, and then save the changes below to finish undoing the edit.
Latest revision Your text
Line 6: Line 6:
 
| titletext = This is probably the first projection in cartographic history that can be criticized for its disproportionate focus on Finland, Mongolia, and the Democratic Republic of the Congo.
 
| titletext = This is probably the first projection in cartographic history that can be criticized for its disproportionate focus on Finland, Mongolia, and the Democratic Republic of the Congo.
 
}}
 
}}
*A [http://imgs.xkcd.com/comics/bad_map_projection_time_zones_2x.png bigger version] of this image can be found by clicking the image at the comic on [https://xkcd.com xkcd.com].
+
A [http://imgs.xkcd.com/comics/bad_map_projection_time_zones_2x.png double sized version] of this image can be found by clicking the image at the comic on xkcd.com.
  
 
==Explanation==
 
==Explanation==
This is the second comic in the series of [[:Category:Bad Map Projections|Bad Map Projections]] and presents Bad map projection #79: Time Zones. It was first with this comic that it became a series. The series began a month earlier with [[1784: Bad Map Projection: Liquid Resize]] (#107). It was followed almost three years later with [[2256: Bad Map Projection: South America]] (#358).
+
{{incomplete|[[#Table of countries and their time zones|Table]] now has all relevant countries and is sortable. But needs to be filled out for each country with explanation of its time zone and why it looks as it does on the map. (Especially those from title text needs explanation like that). Some of the info already given in the explanation could be moved to the table.}}
  
This comic shows a {{w|Map projection|map projection}} in which countries are placed according to the {{w|Time zone|time zones}} that they fall under. It seems that [[Randall]], being Randall, runs with the idea as he has made yet another map projection that is not only inaccurate, but utterly unusable, though less so than the previous one.
+
This comic shows a {{w|Map projection|map projection}} in which countries are placed according to the {{w|Time zone|time zones}} that they fall under. This is thus the second comic in the series of [[:Category:Bad Map Projections|Bad Map Projections]] and it seems that [[Randall]], being Randall, runs with the idea as he has made yet another map projection that is not only inaccurate, but utterly unusable, though less so than the previous one.
  
The first "Liquid Resize" was #107, while this comic features #79. Since the ''liquid resize'' was purely aesthetic, whereas this one at least conveys some meaningful information it makes sense that this projection is ranked higher.  
+
The first was released just over a month before this one and was called [[1784: Bad Map Projection: Liquid Resize]].  "Liquid Resize" was #107, while this comic features #79. Since the ''liquid resize'' was purely aesthetic, whereas this one at least conveys some meaningful information it makes sense that this projection is ranked higher.  
  
 
Conceptually, the series is a comment on the fact that there is no perfect way to draw a map of the world on a flat piece of paper. Each one will introduce a different type of distortion, and the best projection for a given situation is sometimes very disputed. Randall previously explored 12 different projections in [[977: Map Projections]], and expressed his disdain for some types he sees as less efficient but whose users feel superior. None of them are really good as any 2D map projection will always distort in a way the spherical reality, and a map projection that is useful for one aspect (like navigation, geographical shapes and masses visualization, etc.) will not be so for all the others. Local maps of smaller areas can be quite accurate, but the idea of both these map projection comics is to map the entire globe on a flat surface.
 
Conceptually, the series is a comment on the fact that there is no perfect way to draw a map of the world on a flat piece of paper. Each one will introduce a different type of distortion, and the best projection for a given situation is sometimes very disputed. Randall previously explored 12 different projections in [[977: Map Projections]], and expressed his disdain for some types he sees as less efficient but whose users feel superior. None of them are really good as any 2D map projection will always distort in a way the spherical reality, and a map projection that is useful for one aspect (like navigation, geographical shapes and masses visualization, etc.) will not be so for all the others. Local maps of smaller areas can be quite accurate, but the idea of both these map projection comics is to map the entire globe on a flat surface.
  
Time zones are based on the way the Sun shines on the Earth, so these time zones, which are based on the sun's position in the sky, would best be divided by roughly longitudinal (North-to-South Pole) lines. However, this is not the case in practice, as the defined time zones tend to have very jagged boundaries, and furthermore some countries use a completely different time than the zones they are in, at least for some parts (see {{w|China}}). Since Randall knows he cannot fix the boundaries of the time zones, he instead "fixes" the world by making a map appear to match up with the time zone system, as shown in [http://www.explainxkcd.com/wiki/images/1/1f/1799_Map_with_Labeled_time_zones.PNG this map], also posted in the [[#Map with Labeled time zones|trivia]]. This results in bizarre distortions such as the large, gum-like strands of {{w|Greenland}} (these are the towns of {{w|Danmarkshavn}} (UTC) and {{w|Ittoqqortoormiit}} (UTC-1), which use different time zones to the rest of the island) and three enormous gulfs in {{w|Russia}} (some time zones in Russia are only used in southern areas, leaving two-hour differences between some adjacent areas on the country's northern border).  See also [http://www.explainxkcd.com/wiki/images/5/5b/1799_overlay.png this map] with a [[#Time zone map overlayed the comic|time zone map overlayed the comic]].
+
Time zones are based on the way the Sun shines on the Earth, so these time zones, which are based on the sun's position in the sky, would best be divided by roughly longitudinal (North-to-South Pole) lines. However, this is not the case in practice, as the defined time zones tend to have very jagged boundaries, and furthermore some countries use a completely different time than the zones they are in, at least for some parts (see {{w|China}}). Since Randall knows he cannot fix the boundaries of the time zones, he instead "fixes" the world by making a map appear to match up with the time zone system, as shown in [http://www.explainxkcd.com/wiki/images/1/1f/1799_Map_with_Labeled_time_zones.PNG this map], also posted in the [[#Map with Labeled time zones|trivia]]. This results in bizarre distortions such as the large, gum-like strands of {{w|Greenland}} (these are the towns of {{w|Danmarkshavn}} (UTC) and {{w|Ittoqqortoormiit}} (UTC-1), which use different time zones to the rest of the island) and three enormous gulfs in {{w|Russia}} (there is no oblast in Russia using those time zones, hence the giant gap).  See also [http://www.explainxkcd.com/wiki/images/5/5b/1799_overlay.png this map] with a [[#Time zone map overlayed the comic|time zone map overlayed the comic]].
  
 
The effect of this map is to "punish" large countries with a single time zone - for instance, China, which uses UTC+8 across the whole country - and countries that share large time zones - for instance, almost all of {{w|Europe}} is packed into the Central European UTC+1 zone - by shrinking these down. Conversely, countries that use multiple time zones without filling them out are stretched out - for example, the {{w|Democratic Republic of the Congo}} (DRC) and {{w|Mongolia}}, as pointed out in the title text - as are slim countries that do not fill out the full width of their time zones but where their neighbors use different timezones so they have to fill the entire width of their time zone. For instance {{w|Finland}} (also mentioned in the title text) and the {{w|Baltic countries}}, who look huge because their western and eastern neighbors do not use the UTC+2 Eastern Europe time, and thus have to fill out the distance between the countries that are pushed to the zones on their east/west borders.
 
The effect of this map is to "punish" large countries with a single time zone - for instance, China, which uses UTC+8 across the whole country - and countries that share large time zones - for instance, almost all of {{w|Europe}} is packed into the Central European UTC+1 zone - by shrinking these down. Conversely, countries that use multiple time zones without filling them out are stretched out - for example, the {{w|Democratic Republic of the Congo}} (DRC) and {{w|Mongolia}}, as pointed out in the title text - as are slim countries that do not fill out the full width of their time zones but where their neighbors use different timezones so they have to fill the entire width of their time zone. For instance {{w|Finland}} (also mentioned in the title text) and the {{w|Baltic countries}}, who look huge because their western and eastern neighbors do not use the UTC+2 Eastern Europe time, and thus have to fill out the distance between the countries that are pushed to the zones on their east/west borders.
Line 108: Line 108:
 
| {{w|South America}}<br>(not labeled) || UTC-5 &ndash; UTC-3 || || Not labeled.
 
| {{w|South America}}<br>(not labeled) || UTC-5 &ndash; UTC-3 || || Not labeled.
 
|-
 
|-
| {{w|Colombia}} || UTC-5 || Eastern border straightened ||
+
| {{w|Colombia}} || UTC-5 || ||
 
|-
 
|-
| {{w|Venezuela}} || UTC-4 || Western boarded straightened. Country shrunk top to bottom. ||
+
| {{w|Venezuela}} || UTC-4 || ||
 
|-
 
|-
| {{w|Guyana}} || UTC-4 || Shrunk slightly top to bottom. ||
+
| {{w|Guyana}} || UTC-4 || ||
 
|-
 
|-
| {{w|French Guiana}} (labeled  Suriname) || UTC-3 || Minimal distortion || Labeled incorrectly.
+
| {{w|French Guiana}} (labeled  Suriname) || UTC-3 || || Labeled incorrectly.
 
|-
 
|-
| {{w|Suriname}}<br>(labeled F.G.) || UTC-3 || Minimal distortion || Labeled incorrectly.
+
| {{w|Suriname}}<br>(labeled F.G.) || UTC-3 || || Labeled incorrectly.
 
|-
 
|-
 
| {{w|Ecuador}}<br>(not labeled) || UTC-6 &ndash; UTC-5 || || Not labeled. UTC-6 is used only on {{w|Galápagos Islands}} (not shown).
 
| {{w|Ecuador}}<br>(not labeled) || UTC-6 &ndash; UTC-5 || || Not labeled. UTC-6 is used only on {{w|Galápagos Islands}} (not shown).
 
|-
 
|-
| {{w|Peru}} || UTC-5 || Mostly intact ||
+
| {{w|Peru}} || UTC-5 || ||
 
|-
 
|-
| {{w|Brazil}} || UTC-5 &ndash; UTC-3 || Eastern shore shrunk in size ||
+
| {{w|Brazil}} || UTC-5 &ndash; UTC-3 || ||
 
|-
 
|-
| {{w|Bolivia}} || UTC-4 || Compressed shape, slight rotation ||
+
| {{w|Bolivia}} || UTC-4 || ||
 
|-
 
|-
| {{w|Paraguay}} (Par.) || UTC-4 || Country shrunken and location with respect to (new) Argentina has changed ||
+
| {{w|Paraguay}} (Par.) || UTC-4 || ||
 
|-
 
|-
 
| {{w|Chile}} || UTC-5, UTC-3 || || UTC-5 is used only on {{w|Easter Island}} (not shown).
 
| {{w|Chile}} || UTC-5, UTC-3 || || UTC-5 is used only on {{w|Easter Island}} (not shown).
Line 132: Line 132:
 
| {{w|Argentina}} || UTC-3 || ||This is stretched out vertically to fit the entire country into the UTC-3 timezone that it uses.
 
| {{w|Argentina}} || UTC-3 || ||This is stretched out vertically to fit the entire country into the UTC-3 timezone that it uses.
 
|-
 
|-
| {{w|Uruguay}} || UTC-3 || Minimal distortion ||
+
| {{w|Uruguay}} || UTC-3 || ||
 
|-
 
|-
 
| {{w|Europe}}<br>(not labeled) || UTC-4 &ndash; UTC+4 || Compressed with the countries of central and western Europe pressed closer in east-west direction while eastern countries are stretched in all directions. Iceland is moved east. Greenland is stretched horizontally and got strange protruding peninsulas. || Not labeled. Europe uses mostly UTC+1, which causes severe distortion. Disproportionally smaller areas utilize UTC&plusmn;0, UTC+2 and UTC+3. UTC-4, UTC-1 and UTC+4 are used only marginally. Greenland, even if it belongs to North America geographically, is counted here as well as it lies within the Denmark rule.
 
| {{w|Europe}}<br>(not labeled) || UTC-4 &ndash; UTC+4 || Compressed with the countries of central and western Europe pressed closer in east-west direction while eastern countries are stretched in all directions. Iceland is moved east. Greenland is stretched horizontally and got strange protruding peninsulas. || Not labeled. Europe uses mostly UTC+1, which causes severe distortion. Disproportionally smaller areas utilize UTC&plusmn;0, UTC+2 and UTC+3. UTC-4, UTC-1 and UTC+4 are used only marginally. Greenland, even if it belongs to North America geographically, is counted here as well as it lies within the Denmark rule.
Line 154: Line 154:
 
| {{w|Iceland}} || UTC&plusmn;0 || No shape distortions, but different location. || Iceland, even if it geographically lies mostly within the UTC-1 time zone, uses UTC&plusmn;0. It is therefore moved east on Randall's map.
 
| {{w|Iceland}} || UTC&plusmn;0 || No shape distortions, but different location. || Iceland, even if it geographically lies mostly within the UTC-1 time zone, uses UTC&plusmn;0. It is therefore moved east on Randall's map.
 
|-
 
|-
| {{w|Norway}} || UTC+1 ||Moved east and tilted more upright to fit in UTC&plusmn;1 ||
+
| {{w|Norway}} || UTC+1 || ||
 
|-
 
|-
| {{w|Sweden}} || UTC+1 ||Squashed and moved east to make room for Norway obliterating the Gulf of Bothnia and severely shrinking the Baltic sea ||
+
| {{w|Sweden}} || UTC+1 || ||
 
|-
 
|-
 
| {{w|Finland}} || UTC+2 || Stretched horizontally because it borders Norway on the north, which uses UTC+1. ||
 
| {{w|Finland}} || UTC+2 || Stretched horizontally because it borders Norway on the north, which uses UTC+1. ||
Line 234: Line 234:
 
| {{w|Armenia}}<br>(not labeled) || UTC+4 || Displaced east to Caspian Sea coast. || Not labeled. A tiny patch of land on the Caspian Sea coast just north of Iran can be tentatively identified as Armenia. However, Armenia ia a landlocked country in reality.
 
| {{w|Armenia}}<br>(not labeled) || UTC+4 || Displaced east to Caspian Sea coast. || Not labeled. A tiny patch of land on the Caspian Sea coast just north of Iran can be tentatively identified as Armenia. However, Armenia ia a landlocked country in reality.
 
|-
 
|-
| {{w|Africa}}<br>(not labeled) || UTC&plusmn;0 &ndash; UTC+3 ||Compressed in the northwest and along the southeast coast. || Not labeled.  
+
| {{w|Africa}}<br>(not labeled) || UTC&plusmn;0 &ndash; UTC+3 || || Not labeled.
 
|-
 
|-
 
| {{w|Western Sahara}} (labeled Morocco) || UTC&plusmn;0 || || Labeled incorrectly.
 
| {{w|Western Sahara}} (labeled Morocco) || UTC&plusmn;0 || || Labeled incorrectly.
Line 252: Line 252:
 
| {{w|Mali}} || UTC&plusmn;0 || ||
 
| {{w|Mali}} || UTC&plusmn;0 || ||
 
|-
 
|-
| {{w|Niger}} || UTC+1 || Slightly compressed in the west||  
+
| {{w|Niger}} || UTC+1 || ||
 
|-
 
|-
 
| {{w|Libya}} || UTC+2 || Stretched vertically | Nations located to the south of Libya tend to use either UTC+1 (Chad) or UTC+3 (Sudan), but not UTC+2, which Libya uses. In order to fill in this area, Libya, one of the few countries in the area which uses the intermediate UTC+2, has been used to demonstrate the two-hour gap. ||
 
| {{w|Libya}} || UTC+2 || Stretched vertically | Nations located to the south of Libya tend to use either UTC+1 (Chad) or UTC+3 (Sudan), but not UTC+2, which Libya uses. In order to fill in this area, Libya, one of the few countries in the area which uses the intermediate UTC+2, has been used to demonstrate the two-hour gap. ||
Line 288: Line 288:
 
| {{w|Cameroon}} (Cam.) || UTC+1 || ||
 
| {{w|Cameroon}} (Cam.) || UTC+1 || ||
 
|-
 
|-
| {{w|Central African Republic}} (C.A.R.) || UTC+1 || Displaced to the southwest. It is also extended to retain its border with South Sudan despite being two timezones apart.||
+
| {{w|Central African Republic}} (C.A.R.) || UTC+1 || ||
 
|-
 
|-
| {{w|Ethiopia}} || UTC+3 || Compressed horizontally.||
+
| {{w|Ethiopia}} || UTC+3 || ||
 
|-
 
|-
 
| {{w|Somalia}} || UTC+3 || ||
 
| {{w|Somalia}} || UTC+3 || ||
Line 302: Line 302:
 
| {{w|Democratic Republic of the Congo}} (Dem. Rep. of the Congo) || UTC+1 || ||
 
| {{w|Democratic Republic of the Congo}} (Dem. Rep. of the Congo) || UTC+1 || ||
 
|-
 
|-
| {{w|Rwanda}}<br>(not labeled) || UTC+2 || Shifted northwards.|| Not labeled.
+
| {{w|Rwanda}}<br>(not labeled) || UTC+2 || || Not labeled.
 
|-
 
|-
| {{w|Burundi}}<br>(not labeled) || UTC+2 || Shifted northwards.|| Not labeled.
+
| {{w|Burundi}}<br>(not labeled) || UTC+2 || || Not labeled.
 
|-
 
|-
| {{w|Uganda}}<br>(not labeled) || UTC+3 ||Gains border with Burundi. || Not labeled.
+
| {{w|Uganda}}<br>(not labeled) || UTC+3 || || Not labeled.
 
|-
 
|-
| {{w|Kenya}} || UTC+3 || Slightly horizontally compressed.||
+
| {{w|Kenya}} || UTC+3 || ||
 
|-
 
|-
| {{w|Angola}} || UTC+1 || Eastern border straightened.||
+
| {{w|Angola}} || UTC+1 || ||
 
|-
 
|-
| {{w|Zambia}} || UTC+2 || Slightly stretched horizontally.||
+
| {{w|Zambia}} || UTC+2 || ||
 
|-
 
|-
| {{w|Malawi}}<br>(not labeled) || UTC+2 || Rotated slightly clockwise and loses border with Tanzania. || Not labeled.  
+
| {{w|Malawi}}<br>(not labeled) || UTC+2 || || Not labeled.
 
|-
 
|-
| {{w|Tanzania}} || UTC+3 || Horizontally compressed; loses border with Rwanda.||
+
| {{w|Tanzania}} || UTC+3 || ||
 
|-
 
|-
| {{w|Namibia}} || UTC+1 ||Loses Caprivi Strip to Botswana. ||  
+
| {{w|Namibia}} || UTC+1 || ||
 
|-
 
|-
| {{w|Botswana}} (Bots.) || UTC+2 || Border with Namibia simplified.||
+
| {{w|Botswana}} (Bots.) || UTC+2 || ||
 
|-
 
|-
 
| {{w|Zimbabwe}} (Zimb.) || UTC+2 || ||
 
| {{w|Zimbabwe}} (Zimb.) || UTC+2 || ||
 
|-
 
|-
| {{w|Mozambique}} || UTC+2 || Horizontally compressed.||  
+
| {{w|Mozambique}} || UTC+2 || ||
 
|-
 
|-
 
| {{w|Madagascar}} || UTC+3 || None. || Madagascar has the correct shape and position.
 
| {{w|Madagascar}} || UTC+3 || None. || Madagascar has the correct shape and position.
 
|-
 
|-
| {{w|South Africa}} || UTC+2 || Loses some of Atlantic coast to Namibia.||
+
| {{w|South Africa}} || UTC+2 || ||
 
|-
 
|-
 
| {{w|Lesotho}}<br>(not labeled) || UTC+2 || || Not labeled.
 
| {{w|Lesotho}}<br>(not labeled) || UTC+2 || || Not labeled.
Line 518: Line 518:
 
[[Category:Comics with color]]
 
[[Category:Comics with color]]
 
[[Category:Bad Map Projections]]
 
[[Category:Bad Map Projections]]
[[Category:Footnotes]] <!-- (in Australia) * half-hour offset -->
 

Please note that all contributions to explain xkcd may be edited, altered, or removed by other contributors. If you do not want your writing to be edited mercilessly, then do not submit it here.
You are also promising us that you wrote this yourself, or copied it from a public domain or similar free resource (see explain xkcd:Copyrights for details). Do not submit copyrighted work without permission!

To protect the wiki against automated edit spam, we kindly ask you to solve the following CAPTCHA:

Cancel | Editing help (opens in new window)