A variable valve timing control apparatus (1) includes: a relative rotational phase adjusting mechanism capable of adjusting a relative rotational phase between a drive-side rotational member (2) and a driven-side rotational member between the most advanced angle phase and the most retarded angle phase; and a lock mechanism (6) capable of locking the relative rotational phase at an intermediate phase between the most advanced angle phase and the most retarded angle phase; a first pump (70a) operated by a driving force of an engine (E) ; and an electrically driven second pump (70b) operated as an electrically driven pump. Hydraulic fluid is supplied from at least one of the first pump and the second pump, and the second pump is capable of operating even if the first pump is inoperative when the engine is not running.