Having spent almost all our cruising in the tropics, mornings and late afternoon was when we were most active. That's when Peter went out to get water to replenish our tank, find "stuff", for me to snorkel around also finding "stuff", and then when the sun was highest, we'd both hide from the sun and take a nap.
Here's one of my notes on the life of a cruiser: A week in the life of a cruiser
And a few paragraphs down, "Outboard" - what happens to cruisers who have been out too long and get really complacent. Good morning workout.