2017-11-27
2162
#vanilla javascript
Christian Nwamba
1821
Nov 27, 2017 ⋅ 7 min read

Detect location and local time zone of users in JavaScript

Christian Nwamba JS preacher. Developer 🥑. Building the web with the community @concatenateConf @forLoopAfrica. JS and Senior Advocacy for the Next Billion Users through Microsoft.

Recent posts:

Automate Repetitive Tasks With The Pinion Code Generator

Automate repetitive tasks with the Pinion code generator

Discover how the Pinion code generator automates repetitive tasks and boosts productivity compared to tools like Yeoman, Plop, and Hygen.

Joseph Mawa
May 21, 2024 ⋅ 7 min read
Exploring Hurl An Alternative To Postman

Exploring Hurl, a command line alternative to Postman

Hurl is an excellent Postman alternative that improves the DX of working with APIs through the command line.

Nwani Victory
May 20, 2024 ⋅ 8 min read
How To Integrate WunderGraph With Your Frontend Application

How to integrate WunderGraph with your frontend application

Unify and simplify APIs using WunderGraph to integrate REST, GraphQL, and databases in a single endpoint.

Boemo Mmopelwa
May 17, 2024 ⋅ 5 min read
Understanding The Latest Webkit Features In Safari 17.4

Understanding the latest Webkit features in Safari 17.4

The Safari 17.4 update brought in many modern features and bug fixes. Explore the major development-specific updates you should be aware of.

Rahul Chhodde
May 16, 2024 ⋅ 10 min read
View all posts

5 Replies to "Detect location and local time zone of users in JavaScript"

  1. thank you for the post! Just realised that you mixed up longitude and latitude in the reverseGeocodingWithGoogle function 😉

  2. Interesting post! I have one query related to DST. Is there any way in Javascript which will give us user’s tzid and tz long name based on tz database used in Joda library? These tzids are widely used universally and are defined by IANA database. Java’s Joda Library also use the same tz database.

    Joda library gives different DST data (not shown below) for same offset i.e. +04:00…like as below:

    (+04:00) Europe/Ulyanovsk, Greenwich Mean Time
    (+04:00) Europe/Volgograd, Moscow Standard Time
    (+04:00) Indian/Mahe, Seychelles Time
    (+04:00) Indian/Mauritius, Mauritius Time
    (+04:00) Indian/Reunion, Reunion Time

    we have to apply those DST rules while sending icalendar file (ICS files) to users. Users are located at different regions.

    if user’s timezone detected by JS is “+04:00 with some country”, then how can we decide which DST rule out of several should be applied? Because I dont have any country to region mapping.

Leave a Reply