Genesis to Revelation, straight through, in 365 days.
Day 1 is whenever you start. There's no calendar, and no way to fall behind.
The simplest way through the whole Bible: start at Genesis 1 and keep going. Most one-year plans divide the Bible by chapters, which quietly makes some days five times longer than others — Psalm 119 is 176 verses, Psalm 117 is two. This one is balanced by verse count, so a day is a day. Day 1 is whenever you start. There is no calendar and no way to fall behind.