expression
from early on; since early; early
Adverbial phrase meaning 'from an early time' or 'early on'. Often used to describe something that started early and may still be ongoing.
彼は早くからその計画に気づいていた。
He had been aware of the plan from early on.
早くから準備を始めたので、当日は余裕があった。
Since we started preparing early, we had plenty of time on the day.