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Connections
Oregon
Entity
time zone
Entity
geographic coordinate system
Entity
International Standard Book Number
Entity
Portland
Entity
U.S. state
Entity
Daylight saving time
Concept
UTC−08:00
Entity
UTC−07:00
Entity
telephone numbering plan
Entity
United States Geological Survey
Entity
Columbia County
Entity
unincorporated area
Entity
St. Helens
Entity
census-designated place in the United States
Entity
Pacific Time Zone
Entity
ZIP code
Entity
county seat
Entity
United States Department of the Interior
Entity
Geographic Names Information System
Entity