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, 730 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, and 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. Below is a table showing the number of hours to subtract from local time zones in North America in order to convert UTC to local time: For persons west of the zero meridian to the international date line (which includes all of North America), 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. One minute later is 0000 ('zero hundred'), and the start of a new UTC day. The time one minute after 1259 is 1300 (pronounced 'thirteen hundred'). '1:00 a.m.' in UTC is expressed as 0100, pronounced 'zero one hundred.' Fifteen minutes after 0100 is expressed as 0115 thirty-eight minutes after 0100 is 0138 (usually pronounced 'zero one thirty-eight'). UTC uses a 24-hour system of time notation. Despite the improvements in accuracy, however, the same principles used in GMT have been carried over into UTC.

Today, UTC uses precise atomic clocks, shortwave time signals, and satellites to ensure that UTC remains a reliable, accurate standard for scientific and navigational purposes. GMT became a world time and date standard because it was used by Britain's Royal Navy and merchant fleet during the nineteenth century. USCCE Digital Alarm Clock Radio - 0-100 Dimmer, Dual Alarm with Weekday/Weekend Mode, 6 Sounds Adjustable Volume, FM Radio w/ Sleep Timer, Snooze, 2 USB Charging Ports, Thermometer, Battery Backup. Greenwich mean time was based upon the time at the zero degree meridian that crossed through Greenwich, England. Ham radio operators, shortwave listeners, the military, and utility radio services are also big users of UTC. UTC is used by international shortwave broadcasters in their broadcast and program schedules. Other terms used to refer to it include 'Zulu time' (after the 'Z' often used after UTC times), 'universal time,' and 'world time.' 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 international date line, some worldwide standard for time and date is needed.

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