Economic calendar
The economic calendar lists upcoming data releases and central bank decisions, with their time, consensus forecast and expected impact.
It is the basic tool of every trader, even a purely technical one. It shows when NFP, CPI, PMIs and Fed or ECB decisions come out, along with the previous value and the consensus forecast.
Each event is usually rated by its potential impact. High-impact releases cause spread spikes and fast moves: plan for them before opening a position.
Get into the habit of checking it on Sunday evening to prepare your week, then every morning. The Analyse-Trading economic calendar shows times in your local time zone to avoid time-zone mistakes.