{"id":175,"date":"2014-02-22T11:08:39","date_gmt":"2014-02-22T00:38:39","guid":{"rendered":"http:\/\/davidmonro.net\/blog\/?p=175"},"modified":"2018-09-18T21:50:09","modified_gmt":"2018-09-18T12:20:09","slug":"south-australia-is-on-a-really-daft-timezone","status":"publish","type":"post","link":"https:\/\/blog.davidmonro.net\/index.php\/2014\/02\/22\/south-australia-is-on-a-really-daft-timezone\/","title":{"rendered":"South Australia is on a really daft timezone"},"content":{"rendered":"<p>There&#8217;s a rather nice article <a title=\" How much is time wrong around the world?\" href=\"http:\/\/poisson.phc.unipi.it\/~maggiolo\/index.php\/2014\/01\/how-much-is-time-wrong-around-the-world\/\">about timezones and how wrong they can be<\/a>, which shows clearly just how broken the South Australian timezone (+9:30) is. If you look at the <a title=\"SolarTimeVsStandardTime\" href=\"http:\/\/i0.wp.com\/poisson.phc.unipi.it\/~maggiolo\/wp-content\/uploads\/2014\/01\/SolarTimeVsStandardTime.png\">beautiful map<\/a>, you&#8217;ll notice that <strong>all <\/strong>of South Australia (and Northern Territory if it comes to that) is in red; that is, behind the timezone. At 15\u00b0 of longitude per hour (360\u00b0 in 24 hours), the +9:30 timezone would be centred at 142.5\u00b0 E. South Australia extends from 129\u00b0 E to 141\u00b0 E (see <a title=\"South Australian borders\" href=\"http:\/\/en.wikipedia.org\/wiki\/South_Australian_borders\">wikipedia<\/a>).<\/p>\n<p>If you look closely at the map, you&#8217;ll see part of Indonesia (West Papua) which is on the +9:00 timezone. You can see that the white coloured section (the centre of the timezone, 135\u00b0 E) is roughly in line with the centre of South Australia. Surely this would make more sense? All that broken software which assumes that timezone offsets from GMT are always a whole number of hours would just work!!<\/p>\n<p>(I recently came across broken software which did in fact have non-integer timezones available. Well, sort of. They had a special case for India on +5:30, but that was all. ARRGGHH!).<\/p>\n","protected":false},"excerpt":{"rendered":"<p>There&#8217;s a rather nice article about timezones and how wrong they can be, which shows clearly just how broken the South Australian timezone (+9:30) is. If you look at the beautiful map, you&#8217;ll notice that all of South Australia (and Northern Territory if it comes to that) is in red; that is, behind the timezone. [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-175","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/blog.davidmonro.net\/index.php\/wp-json\/wp\/v2\/posts\/175","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.davidmonro.net\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.davidmonro.net\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.davidmonro.net\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.davidmonro.net\/index.php\/wp-json\/wp\/v2\/comments?post=175"}],"version-history":[{"count":3,"href":"https:\/\/blog.davidmonro.net\/index.php\/wp-json\/wp\/v2\/posts\/175\/revisions"}],"predecessor-version":[{"id":209,"href":"https:\/\/blog.davidmonro.net\/index.php\/wp-json\/wp\/v2\/posts\/175\/revisions\/209"}],"wp:attachment":[{"href":"https:\/\/blog.davidmonro.net\/index.php\/wp-json\/wp\/v2\/media?parent=175"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.davidmonro.net\/index.php\/wp-json\/wp\/v2\/categories?post=175"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.davidmonro.net\/index.php\/wp-json\/wp\/v2\/tags?post=175"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}