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While a mean time was proposed as early as 1835, the first law relating to a standardised time zone was the Telegraph Act of 1852, which stipulated that the national telegraph service adjust the clocks in its offices to "the central time of Amsterdam", which would later become known as "Amsterdam Time" (Dutch: Amsterdamse Tijd ) the mean time ...
This is a list representing time zones by country. Countries are ranked by total number of time zones on their territory. Time zones of a country include that of dependent territories (except Antarctic claims). France, including its overseas territories, has the most time zones with 12 (13 including its claim in Antarctica and all other counties).
The tz database partitions the world into regions where local clocks all show the same time. This map was made by combining version 2023d with OpenStreetMap data, using open source software. [1] This is a list of time zones from release 2025a of the tz database. [2]
time in California = 09:30 − (−05:00) + (−08:00) = 06:30; time in India = 09:30 − (−05:00) + (+05:30) = 20:00. These calculations become more complicated near the time switch to or from daylight saving time, as the UTC offset for the area becomes a function of UTC time. The time differences may also result in different dates.
This time was indicated as GMT +0h 19m 32.13s until 17 March 1937, after which it was simplified to GMT+0h20m. This time zone was also known as the Loenen time or Gorinchem time, as this was the exact time in both Loenen and Gorinchem. At noon in Amsterdam, it was 11:40 in London and 12:40 in Berlin.
Instead, an apposition is added, for instance 21:00 is said as "9 uur 's avonds" (9 o'clock in the evening). Half hours are relative to the next hour – for example, 5:30 is said as " half 6 ". Quarter hours are expressed relative to the nearest whole hour – for example, 6:15, " kwart over 6 " (quarter past six) and 6:45, " kwart voor zeven ...
Such designations can be ambiguous; for example, "CST" can mean China Standard Time (UTC+08:00), Cuba Standard Time (UTC−05:00), and (North American) Central Standard Time (UTC−06:00), and it is also a widely used variant of ACST (Australian Central Standard Time, UTC+9:30). Such designations predate both ISO 8601 and the internet era; in ...
Retrieved from "https://en.wikipedia.org/w/index.php?title=Amsterdam_Time&oldid=348482699"This page was last edited on 8 March 2010, at 06:25 (UTC). (UTC).