{"action":"closed","issue":{"url":"https://api.github.com/repos/inbo/bird-tracking/issues/72","repository_url":"https://api.github.com/repos/inbo/bird-tracking","labels_url":"https://api.github.com/repos/inbo/bird-tracking/issues/72/labels{/name}","comments_url":"https://api.github.com/repos/inbo/bird-tracking/issues/72/comments","events_url":"https://api.github.com/repos/inbo/bird-tracking/issues/72/events","html_url":"https://github.com/inbo/bird-tracking/issues/72","id":63722835,"node_id":"MDU6SXNzdWU2MzcyMjgzNQ==","number":72,"title":"Calendar time zone","user":{"login":"bartaelterman","id":2742677,"node_id":"MDQ6VXNlcjI3NDI2Nzc=","avatar_url":"https://avatars0.githubusercontent.com/u/2742677?v=4","gravatar_id":"","url":"https://api.github.com/users/bartaelterman","html_url":"https://github.com/bartaelterman","followers_url":"https://api.github.com/users/bartaelterman/followers","following_url":"https://api.github.com/users/bartaelterman/following{/other_user}","gists_url":"https://api.github.com/users/bartaelterman/gists{/gist_id}","starred_url":"https://api.github.com/users/bartaelterman/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/bartaelterman/subscriptions","organizations_url":"https://api.github.com/users/bartaelterman/orgs","repos_url":"https://api.github.com/users/bartaelterman/repos","events_url":"https://api.github.com/users/bartaelterman/events{/privacy}","received_events_url":"https://api.github.com/users/bartaelterman/received_events","type":"User","site_admin":false},"labels":[{"id":403152502,"node_id":"MDU6TGFiZWw0MDMxNTI1MDI=","url":"https://api.github.com/repos/inbo/bird-tracking/labels/bird%20tracking%20explorer","name":"bird tracking explorer","color":"242426","default":false}],"state":"closed","locked":false,"assignee":null,"assignees":[],"milestone":{"url":"https://api.github.com/repos/inbo/bird-tracking/milestones/3","html_url":"https://github.com/inbo/bird-tracking/milestone/3","labels_url":"https://api.github.com/repos/inbo/bird-tracking/milestones/3/labels","id":787341,"node_id":"MDk6TWlsZXN0b25lNzg3MzQx","number":3,"title":"Release 2 functionality","description":"","creator":{"login":"peterdesmet","id":600993,"node_id":"MDQ6VXNlcjYwMDk5Mw==","avatar_url":"https://avatars3.githubusercontent.com/u/600993?v=4","gravatar_id":"","url":"https://api.github.com/users/peterdesmet","html_url":"https://github.com/peterdesmet","followers_url":"https://api.github.com/users/peterdesmet/followers","following_url":"https://api.github.com/users/peterdesmet/following{/other_user}","gists_url":"https://api.github.com/users/peterdesmet/gists{/gist_id}","starred_url":"https://api.github.com/users/peterdesmet/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/peterdesmet/subscriptions","organizations_url":"https://api.github.com/users/peterdesmet/orgs","repos_url":"https://api.github.com/users/peterdesmet/repos","events_url":"https://api.github.com/users/peterdesmet/events{/privacy}","received_events_url":"https://api.github.com/users/peterdesmet/received_events","type":"User","site_admin":false},"open_issues":0,"closed_issues":29,"state":"closed","created_at":"2014-09-12T09:56:09Z","updated_at":"2018-10-26T08:39:08Z","due_on":null,"closed_at":"2016-07-05T10:02:15Z"},"comments":1,"created_at":"2015-03-23T13:28:07Z","updated_at":"2018-10-26T08:39:08Z","closed_at":"2018-10-26T08:39:08Z","author_association":"CONTRIBUTOR","body":"The calendar heatmap shows the data using the timezone of the client's system. Therefore, the result will look different on different systems. The cal-heatmap API itself is timezone agnostic. You cannot set timezones there and so there is no way to prevent this from happening.\n\nThis is a example heatmap:\n\n![screen shot 2015-03-23 at 14 15 03](https://cloud.githubusercontent.com/assets/2742677/6780860/059bf8cc-d169-11e4-9540-f99e586b48d8.png)\n\nHere we see the same heatmap with the same data, only the systems timezone was changed:\n\n![screen shot 2015-03-23 at 14 15 11](https://cloud.githubusercontent.com/assets/2742677/6780866/0a7e7964-d169-11e4-9b83-ee87fb2cde2b.png)\n\nI see two options:\n1. Convert the data to the appropriate timezone, and document that the results are always displayed in UTC+1 (our local timezone). It's not clean to mess with the data to solve this, but solving this on the display side would mean refactoring or extending the cal-heatmap source code.\n2. Do nothing about it but acknowledge that looking at timeseries data has a timezone context which can differ between clients.\n\nEither way, #71 should be fixed.\n"}}
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