Time zones
Time zones that are particularly relevant to Angelina Jordan include Central European Time (CET/CEST/CEDT) used in Norway, and Pacific Time (PT/PST/PDT) and Eastern Time (ET/EST/EDT) used in the western and eastern United States, respectively. Most places in both countries observe daylight saving time↗, for which times are shifted an hour later in the warmer months of the year (details below).
Central European Time
Norway, where Angelina was born and spent much of her childhood (at least ages 7 through 11), uses Central European Time↗ (CET), which is one hour later than Coordinated Universal Time↗ (i.e., UTC+01:00↗). From late March to late October, times shift an hour later than that (UTC+02:00↗), which is known as Central European Summer Time↗ (CEST) or Central European Daylight Time (CEDT). (Note that the information in the previous sentence holds from 1995 onwards. For the situation before then, see the Wikipedia article "Time in Norway"↗.)
Pacific Time
The west coast of the United States, where Angelina has lived since 2018, uses Pacific Time↗ (PT). When daylight saving time↗ is in effect—from early/mid March to early November—the time zone is referred to as Pacific Daylight Time (PDT), for which times are 7 hours behind Coordinated Universal Time↗ (UTC−07:00↗); in the winter months it is referred to as Pacific Standard Time (PST) and times are 8 hours behind UTC (UTC−08:00↗). (Note that before 2007, the timing of daylight saving time in the U.S. was different. See "Daylight saving time in the United States"↗ for details.)
Websites and apps
YouTube, Facebook, and Instagram all use Pacific Time to date posts and uploads. Therefore, for example, a YouTube video posted early enough in the morning in Norway may appear to have been posted the previous day (i.e., if it was still before midnight on the U.S. west coast when uploading finished).
Eastern Time
Eastern Time↗ (ET) is the time zone of the east coast of the United States. (One reason this is relevant to Angelina is because the timing of music releases are typically tied to this time zone, as described below.) From early/mid March to early November, it is known as Eastern Daylight Time (EDT) and times are 4 hours behind UTC (UTC−04:00↗); for the rest of the year it is known as Eastern Standard Time (EST) and times are 5 hours behind UTC (UTC−05:00↗).
Music releases
Major record labels (like Republic Records) tend to time their music releases (singles, EPs, and albums) for midnight Eastern Time in the early morning of the official release date (i.e., c. 12:01 a.m. on the day of release, as opposed to c. 11:59 p.m. on that day).