Does your draw step count as a separate phase from your main phase for timing purposes?

A turn in Magic is divided into phases, and phases are further divided into steps. The beginning phase contains three steps: the untap step, the upkeep step, and the draw step (CR 501, 502, 503, 504). The main phase is a separate phase that comes after the beginning phase (CR 505). They are not the same phase or the same step.

For timing purposes, this distinction matters in several ways. Sorcery-speed spells and abilities can only be cast during a main phase when the stack is empty and you have priority (CR 307.1). The draw step is not a main phase, so you cannot cast sorceries during your draw step. Similarly, triggered abilities that trigger 'at the beginning of your draw step' or 'at the beginning of your main phase' are completely separate triggers that occur at different points in the turn.

Phase-based effects also care about this distinction. Some cards say 'until your next main phase' or 'until your next draw step' — these refer to different, specific points in the turn sequence, and the draw step always comes before the main phase in a given turn.

Concrete example: You control a creature with 'at the beginning of your draw step, draw a card.' You draw that card during the draw step. You then move to your first main phase — only now can you cast a sorcery spell. The two events happen in different steps/phases of the same turn, confirming they are entirely separate for all timing purposes.