![]() In order for scientists to communicate about data, it is necessary to have a global standard for referencing time.Ī standard time was originally adopted to end the confusion caused by each community’s use of its own local time. These stand for Coordinated Universal Time and Zulu time respectively, a way to tell time worldwide. Publications 8" x 10", 192 pages Table of Contents.You have probably noticed that most satellite images will have times expressed in UTC or Z time. This calendar has become a standard in such worldwide industries as aviation, and international commerce and trade - however, other calendars do exist. The United States and many other countries use the Christian Gregorian calendar to mark years. United States ANSI X3.30 and NIST FIPS 4-1, The date format Year-Month-Day has become widely accepted as a standard in many countries. Virtually the entire world formats time as Hours:Minutes:Seconds (hours listed before minutes, minutes listed before seconds). REFERENCE: A Briefer History of Time - Howard Barnes, Georgi Dobrovolski Solar Observatory, New Zealand, 2010. UTC - civil atomic time scale on or about the Greenwich meridian kept within 0.9 seconds of UT1. ![]()
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