Final answer:
To find the current time in Seattle, consider that the city is approximately 122°W longitude, meaning it's about 8 hours behind Greenwich Mean Time. When it is noon at Greenwich, it's around 4 a.m. in Seattle, not accounting for Daylight Saving Time adjustments.
Step-by-step explanation:
To determine the current time in Seattle, we need to apply the concept that every 15° of longitude represents one hour difference in time from the Prime Meridian (0° longitude), which runs through Greenwich, England. Since Seattle is located to the west of the Prime Meridian, it will be earlier than the time at Greenwich.
Let's say it is 12 noon at your location, which is on the same meridian as Greenwich (assuming for this example). Since Seattle is approximately 122°W longitude, we divide 122 by 15, which gives us about 8. This means that the time in Seattle is approximately 8 hours behind the time at Greenwich. Therefore, when it is noon (12 p.m.) at Greenwich, it would be about 4 a.m. in Seattle. Remember, this example doesn’t take into account Daylight Saving Time changes, which could affect the precise time difference.
It's important to note that actual current time in Seattle would also depend on the specific date and whether Daylight Saving Time is in effect or not. To get the exact time, you would typically refer to a world clock or time zone conversion tool.