Some British clocks from this period have two minute hands, one for the local time and one for GMT.
By 1855, 98% of Great Britain's public clocks were using GMT, but it was not made the island's legal time until August 2, 1880. This practice was soon followed by other railway companies in Great Britain and became known as Railway Time.Īround August 23, 1852, time signals were first transmitted by telegraph from the Royal Observatory. In November 1840, the British Great Western Railway started using GMT kept by portable chronometers. In the 19th century, as transportation and telecommunications improved, it became increasingly inconvenient for each location to observe its own solar time. Main article: Railway time Plaque commemorating the Railway General Time Convention of 1883 in North America The control panel of the Time Zone Clock in front of Coventry Transport Museum DST is usually used for about half of the year, typically by adding one hour to local time during spring and summer. The UTC offsets range from UTC−12:00 to UTC+14:00, and are usually a whole number of hours, but a few zones are offset by an additional 30 or 45 minutes (such as in India, South Australia and Nepal).Īreas of extreme latitude are more likely to use DST. Some time zones switch between offsets throughout the year due to daylight saving time (DST). Time zones are defined as one or two offsets from Coordinated Universal Time (UTC), and (if two offsets are used) the days when the offset changes. Time zones tend to follow the boundaries between countries and their subdivisions instead of strictly following longitude, because it is convenient for areas in frequent communication to keep the same time. For other uses, see Time zone (disambiguation).Ī time zone is an area which observes a uniform standard time for legal, commercial and social purposes. For more time zone lists, see Lists of time zones. For a list of time zones by country, see List of time zones by country. Java is a registered trademark of Oracle and/or its affiliates.This article is about time zones in general. For details, see the Google Developers Site Policies. Learn how to make Time Zone requests: Go toĮxcept as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License, and code samples are licensed under the Apache 2.0 License.Services are community-supported client libraries, open sourced under theĭownload them from GitHub, where you can also find installation instructions and sample code. The Java Client, Python Client, Go Client and Node.js Client for Google Maps
Your choice through one of the following client libraries: You can use timezone data to enhance apps and websites for users across Incorporate timezone data into your own app! In the Timezone requests and responses guide for details.Įxplore how to use timezone data in your app or website. Once you have an API key, you can start testing out the Time Zone API directly from See Time Zone for specific response examples.You provide your request along with location and timestamp. Time Zone API along with the data it returns.
The following table summarizes the resources available through the Nevada, USA, with a requested output in JSON. The following example shows a request for It returns data in the format specified by the request. The Time Zone API accepts an HTTPS request of latitude/longitudeĬoordinates, the desired date and time as a timestamp, and optionally,Ī language code. UTC and for daylight savings time for each of Locations on the surface of the earth, with the time offset from With the Time Zone API, you can request the time zone for Website or app display time-based data relevant to your users. Time zone data can be particularly useful when you want to have your Time zone offsets from UTC and for daylight savings.Localized time zone names for map locations from the Google Maps Platform.The time zone ID and name for dates and times at specific locations With the Time Zone API, you can develop applications that provide Zone data for the location, including offsets for UTC and daylight savings Latitude/longitude coordinates and a desired date and time. The Time Zone API is a service that accepts an HTTP request of