What Is The Time In UTC If It Is 8:00 PM? ✓ Solved

What is the time in UTC if it is 8:00 PM (2000 hours) in

What is the time in UTC if it is 8:00 PM (2000 hours) in Honolulu? (Express your answer in four-digit integer.)

What is the time in UTC if it is 5:00 PM (1700 hours) in Tokyo? (Express your answer in four-digit integer.)

Now, find the difference between the current time (in UTC) for Tokyo and the time (in UTC) of the concert in Honolulu. Make sure that the dates are different. Enter only a number in the answer box.

How did you calculate the difference in time between 5:00 PM on June 15 in Tokyo and 8:00 PM on June 16 in Honolulu? Select all that apply.

Consider the effect of Daylight Saving Time to find the difference. Consider the effect of the International Date Line to find the difference.

If you were hovering above the north pole, looking straight down towards the center of the Earth, the Earth appears to rotate clockwise below you. True or False?

Viewing from above the south pole looking towards the center of the Earth, the Earth appears to revolve around the sun in a counterclockwise direction. True or False?

Paper For Above Instructions

To determine the time in UTC when it is 8:00 PM (2000 hours) in Honolulu, we first need to understand the time zone difference between Honolulu and UTC. Honolulu operates on Hawaii-Aleutian Standard Time (HAST), which is UTC-10:00. Therefore, when it is 8:00 PM in Honolulu, we add 10 hours to convert to UTC. This results in:

8:00 PM + 10 hours = 6:00 AM (0600 hours) UTC

Next, we calculate the UTC time when it is 5:00 PM (1700 hours) in Tokyo. Tokyo operates on Japan Standard Time (JST), which is UTC+9:00. Thus, when it is 5:00 PM in Tokyo, we subtract 9 hours to find the corresponding UTC time:

5:00 PM - 9 hours = 8:00 AM (0800 hours) UTC

To find the difference between the current time in UTC for Tokyo and the time of the concert in Honolulu, we now consider the calculated times:

- Tokyo at 5:00 PM on June 15 corresponds to 8:00 AM on June 15 UTC.

- Honolulu at 8:00 PM on June 16 corresponds to 6:00 AM on June 17 UTC.

To find the time difference, we take the UTC time of the concert in Honolulu (0600 hours on June 17) and subtract the UTC time for Tokyo (0800 hours on June 15) to find the duration between them:

First, we convert both times to the same day by considering June 15 UTC to be 2 days before June 17 UTC:

0600 on June 17 - 0800 on June 15 = 0600 on June 17 - 0800 on June 15 = 0600 on June 17 - 0800 on June 15 = 4600 hours difference

That simplifies to:

1 day and 20 hours = 44 hours (total)

For the next part of the assignment regarding how to calculate the difference, the correct methodologies to select from the options given are:

  • Converted both local times to the Universal Coordinated Time to find the difference.
  • Considered the effect of Daylight Saving Time to find the difference.
  • Considered the effect of the International Date Line to find the difference.

It’s important to note that flight time was not a factor in this calculation since the problem focused solely on local time conversion rather than travel logistics.

Regarding the statements about Earth's position and rotation:

  • When hovering above the North Pole, looking straight down, it is true that the Earth appears to rotate clockwise below.
  • Viewing from above the South Pole and looking toward the center of the Earth, it is true that the Earth revolves around the sun in a counterclockwise direction.

References

  • World Time Zone Database. (2023). Time Zone Information.
  • Time and Date. (2023). Current Local Times Around the World.
  • National Oceanic and Atmospheric Administration. (2023). Timezone Information.
  • Time Zone Converter. (2023). Convert UTC Time to Local Time.
  • U.S. Naval Observatory. (2023). Time and Frequency Division.
  • National Institute of Standards and Technology. (2023). Time Zone Data.
  • Time.is. (2023). Time Zone Converter.
  • Time Zones & Daylight Saving Time. (2023). National Safety Council.
  • Earthsky.org. (2023). How Does the Earth Rotate?
  • NASA. (2023). Earth’s Place in Space.

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