Oregon is located in the Pacific Time Zone. This zone, often abbreviated as "PT" for Pacific Time, is eight hours behind Universal Coordinated Time -- abbreviated as "UTC." During Daylight Savings Time, the zone is only seven hours behind UTC, since clocks are adjusted due to changes in the length of the day; during this period, PT is often abbreviated as "PDT," for "Pacific Daylight Time."
Nigeria is located in the West Africa Time Zone. It is one hour ahead of UTC. Given the location of Nigeria -- near the equator -- day length does not vary much during the year. Accordingly, no Daylight Saving Time is followed. This fact makes it easier to coordinate time with Oregon and its PT Zone, since of the two zones, only the Pacific Zone changes.
During Daylight Saving Time, Oregon and PT are seven hours behind UTC and thus eight hours behind West Africa Time. So, if it is noon -- or 12h00 on world clock time -- in Oregon, it will be 8 p.m. in Nigeria.
During Pacific Standard Time, Oregon and the PT Zone are eight hours behind the UTC clock. So, during this time, Oregon and Nigeria are separated by a total of nine hours. Thus, if it is noon -- 12h00 -- in Oregon, it will be 9 p.m. in Nigeria.
