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Date and time of digitizing: 10:09, 7 October 2015: Software used: PScript5.dll Version 5.2.2: File change date and time: 10:09, 7 October 2015: Conversion program: Acrobat Distiller 11.0 (Windows) Encrypted: no: Page size: 1512 x 1224 pts: Version of PDF format: 1.5
Time zone abbreviations for both Standard Time and Daylight Saving Time are shown exactly as they appear in the database. See strftime and its "%Z" field. Some of zone records use 3 or 4 letter abbreviations that are tied to physical time zones, others use numeric UTC offsets.
National Standard Time. Add languages. Add links. Article; Talk; ... Download QR code; Print/export Download as PDF; Printable version; In other projects
The evolution of United States standard time zone boundaries from 1919 to 2024 in five-year increments. Plaque in Chicago marking the creation of the four time zones of the continental US in 1883 Colorized 1913 time zone map of the United States, showing boundaries very different from today Map of U.S. time zones during between April 2, 2006, and March 11, 2007.
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 ...
Date/Time Thumbnail Dimensions User Comment; current: 18:08, 29 July 2013: 1,238 × 956 (7.19 MB): Alejandroadan: Putting the current (July 29, 2013) version of the image to update the old one (although from what I've seen they look the same).
In the United States, the United States Naval Observatory provides the standard of time, called UTC(USNO), for the United States military and the Global Positioning System, [1] while the National Institute of Standards and Technology provides the standard of time for civil purposes in the United States, called UTC(NIST).
Standard time is the synchronization of clocks within a geographical region to a single time standard, rather than a local mean time standard. Generally, standard time agrees with the local mean time at some meridian that passes through the region, often near the centre of the region. Historically, standard time was established during the 19th ...