Question: Why is it a general practice in ISKCON to discuss Srimad-Bhagavatam during morning hours and Bhagavad-gita during evening hours?
Answer by Romapada Swami: I can only answer this question from my experience in Krishna consciousness. In the beginning stages of Krishna consciousness, classes in ISKCON were in the evening, when the young American students could attend. Bhagavad-gita was their introduction to Krishna consciousness. Later, when temple ashrams formed, regular morning classes were also introduced. Since Srimad-Bhagavatam was being translated at the same time in ISKCON’s evolution, there was need to have a time to hear & discuss it. Hence, morning Srimad-Bhagavatam class!
It always seemed very natural for me, and I never really inquired about the reason behind this general ISKCON practice. There are certainly no hard and fast rules about it.