Time is irrelevant.
I shifted MY timing to MY bedtime. So, relative to the Clark protocol, I eat around noon and 4pm, do my ES around 8 and 10, and oil mix around midnight. Sometimes I have contracted that time frame.
FYI - Once I got so distracted on my PC, it was 1:30 in the morning and I realized I forgot the midnight oil. So, I took it a 1:30 and went to bed. Still had good results.