New York session
Second-biggest forex session. 08:00-17:00 ET. Major US data and policy releases.
NFP, CPI, FOMC all land during NY hours. Dollar-pair volatility explodes around data. NY close (5pm ET) = daily rollover.
Learn to actually use New York session.
Definitions are the easy part. The free first five modules put this on a real chart and make you do the work. No card required.