Hi there, If the year is 1901, 1902, 1903 do we assume (0) zero for year divided by 4? Many thanks! Thank you for your question! The Day Pillar calculation is the most confusing one of the lot 🙂 The short answer: Yes! The long answer: For those just stopping by, here is the Day… Continue reading Day Pillar – 1901, 1902, 1903?