If you listen to the seasonal sleep patterns, the sure do seem to follow the lengthening and shorting day cycles, as well as the working patterns of someone working in close connection with nature (like a farmer).
My recommendations are to be in sync with the sun, and get up early enough that you can do SFQ and still get to work on time, in an unrushed fashion. Finish your work for the day so you are comfortable having time to meditate before going to sleep.
If this results in your doing SFQ during the best times of 5-7am , 11am-1pm, 5-7pm, and 11pm-1am, then that is great. I would say it is more important the attitude you bring to the meditations, than the times you do them. I would say it is more important to do them regularly, and the same times, than to get them at the best times.
I would say you are the best person to know when it is best for you to sleep and meditate. Just listen and follow your guidance.
You are perfection.
Iam2