11 or 10 hours. There's no daylight savings time.
New York state is located in the Eastern time zone, while Washington state is in the Pacific time zone. The time difference between them is three hours, with New York being three hours "ahead" of Washington state. For example, when it's noon in New York, in Washington state it's 9 a.m.
Local time in Tel Aviv, Israel is 10 hours ahead of Seattle, Washington.
Spain is 9 hours ahead of Seattle, WA, USA
Seattle, Washington is 8-10 hours behind Windhoek, Namibia. Both places are on daylight saving time [DST]. But their start/end dates don't coincide. When they're both on DST, Seattle is 9 hours behind Windhoek. When Seattle is on DST but Namibia is off, Seattle is only 8 hours behind. When Namibia is on DST but Seattle isn't, Seattle is 10 hours behind.
Seattle, Washington is usually two hours ahead of Hawaii. But Hawaii doesn't observe daylight saving time [DST] when most of the United States sets the clock one hour ahead. During DST Seattle is three hours ahead of Hawaii.
Dublin is usually eight hours ahead of Seattle, except for the 7% of the year when the U.S. is on Daylight Saving Time and Europe is on Winter Time.
Iraq (UTC+3) is always three hours ahead of Ghana (UTC).
Taiwan is 16 hours ahead of Seattle from the 1st Sunday of November until the 2nd Sunday of March. Taiwan is 15 hours ahead of Seattle the rest of the year.
Honolulu HI is 5 hours behind Washington DC. For instance, if Washington DC's time was 7:00 p.m., the time in Hawaii would be 2:00 p.m.
Seattle (Washington) and California are in the same time zone.
Seattle is on Pacific Time. New York is on Eastern Time. So, New York is 3 hours ahead of Seattle. The U.S. has four main time zones. From west to east, they are: Pacific Time, Mountain Time, Central Time, and Eastern Time. Each is one hour later than the last. For example, if it's 3 PM Pacific Time, then it's 4 PM Mountain Time, 5 PM Central Time, and 6 PM Eastern Time.
Seattle is two hours ahead of Honolulu at the beginning of March and three hours ahead at the end of March.