https://github.com/evantahler/system-timezone

A node.js package to return this host's timezone
https://github.com/evantahler/system-timezone

Last synced: 3 months ago
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A node.js package to return this host's timezone

• Host: GitHub
• URL: https://github.com/evantahler/system-timezone
• Owner: evantahler
• Created: 2015-09-19T16:34:37.000Z (over 9 years ago)
• Default Branch: master
• Last Pushed: 2018-03-19T10:40:30.000Z (almost 7 years ago)
• Last Synced: 2024-08-09T23:49:10.913Z (5 months ago)
• Language: JavaScript
• Size: 133 KB
• Stars: 3
• Watchers: 2
• Forks: 2
• Open Issues: 1
• Metadata Files:
  • Readme: readme.md

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README

        
# System Timezone

[![Build Status](https://travis-ci.org/evantahler/system-timezone.svg)](https://travis-ci.org/evantahler/system-timezone)

A simple package that checks various system configuration files in an attempt to determine what *this* computer's timezone is (in Olson notation).  

This is a 100% javasctipt package that should work on any version of `node > 0.10.0`.

We do this via 4 methods:

1. If `process.env.TZ` is set, return it

2. If `/etc/timezone` is present, return the contents of the file

3. If `/etc/localtime` is present, and is a symlink to a file in `/usr/share/zoneinfo`, we can follow the link to know the proper timezone

4. If `/etc/localtime` is present, but not a symlink, we MD5 the contents and compare it to all other files in, `/usr/share/zoneinfo`, and then return the name of the first match.

## Examples:

```javascript

var system_timezone = require('system-timezone');

// This is a slow, sync call.  It would be best to call it once at boot and cache the response

// If a timezone cannot be determined, an Error will be thrown.

var thisTimezone = system_timezone();

console.log( thisTimezone ); // America/Los_Angeles

```

## TODO:

- can we test this without messing up system time?

- can we get this to work on windows?