![]() If you're like many radio hobbyists, you will soon add a second clock set to UTC to your collection of radio gear. If you live in the central or eastern United States, and those frequencies aren't usable, you can tune to station CHU, in Ottawa, Ontario, Canada on 3330, 7335 780 kHz, to hear the current UTC time. ![]() WWV uses a man's voice to give the time, while WWVH uses a female voice. To hear the latest time in UTC, you can tune to stations WWV, in Fort Collins, Colorado and WWVH, Kauai, Hawaii on 2500, 5000, 1000 kHz to hear the time announced in UTC each minute. Since the date is also UTC, you need to listen at 10:00 p.m. on Saturday, however, you won't hear the program. You do the math, and find that 0400 UTC is equal to 10:00 p.m. Suppose your local time zone is Central standard,Īnd you want to hear a shortwave program scheduled to be broadcast at 0400 UTC Saturday. ![]() timezones.Ī major source of confusion when using UTC is that the date also follows UTC. The second table is direct conversion from UTC to U.S.A. The number of hours to subtract from local time zones in North America in order to convert West of the zero meridian to the international date line (which includes all of NorthĪmerica), hours are subtracted from UTC to convert to local time. To convert UTC to local time, you have to add or subtract hours from it. Minute later is 0000 ("zero hundred"), and the start of a new UTC day. The time one minute afterġ259 is 1300 (pronounced "thirteen hundred"). "1:00 a.m." in UTC is expressedĪs 0100, pronounced "zero one hundred." Fifteen minutes after 0100 is expressedĪs 0115 thirty-eight minutes after 0100 is 0138 (usually pronounced "zero one UTC uses a 24-hour system of time notation. Improvements in accuracy, however, the same principles used in GMT have been carried over Reliable, accurate standard for scientific and navigational purposes. Precise atomic clocks, shortwave time signals, and satellites to ensure that UTC remains a GMT became a world time and date standard because it was usedīy Britain's Royal Navy and merchant fleet during the nineteenth century. UTC is the time at the Prime Meridian (0 Longitude) given in hours. UTC use to be called Greenwich Mean Time (GMT), but still is in English speaking countries, or Zulu Time (Z), which is used in plane and ship navigation. Greenwich mean time was based upon the time at the zero degree meridian that crossed UTC stands for Universal Time Coordinated, and it's the primary time standard by which the world regulates clocks and time. All of the times and dates found here at Operators, shortwave listeners, the military, and utility radio services are also big International shortwave broadcasters in their broadcast and program schedules. Times), "universal time," and "world time." Refer to it include "Zulu time" (after the "Z" often used after UTC This was formerly known as Greenwich mean time (GMT). This standard is coordinated universal time, abbreviated UTC. Since radio signals can cross multiple time zones and the internationalĭate line, some worldwide standard for time and date is needed.
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