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\nThe [Theory and pragmatics of the tz code and data](https://data.iana.org/time-zones/theory.html) document gives \ndetails of how the data is organized and managed.\n\n\n### Installation\n\n```bash\ngo get -u github.com/tiechui1994/tzdb\n```\n\n### Example Usage \n\n```go\npackage main\n\nimport (\n    \"fmt\"\n    \"time\"\n    \n    \"github.com/tiechui1994/tzdb\"\n)\n\nfunc main() {\n    loc, _ := time.LoadLocation(\"America/Chicago\")\n    timeFormat := \"2006-01-02 15:04:05\"\n    \n    testz, _ := time.ParseInLocation(timeFormat, \"2021-03-14 01:59:00\", loc)\n    fmt.Println(testz, testz.UTC(), tzdb.IsDST(testz))\n    \n    testz = testz.Add(time.Minute)\n    fmt.Println(testz, testz.UTC(), tzdb.IsDST(testz))\n    \n    testz = testz.Add(time.Minute)\n    fmt.Println(testz, testz.UTC(), tzdb.IsDST(testz))\n}\n```\n\n### Update location zoneinfo\n\n```bash\ncurl https://raw.githubusercontent.com/tiechui1994/tzdb/main/scripts/update.sh | sudo sh 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