How long it takes to create a painting is a measure of time and nothing else. Sometimes things flow; other times it takes considerable effort to get a painting to a satisfactory point. More time spent on a painting doesn’t inherently make it a better painting.
There’s also the question of what’s being included in the calculation: is it only when you’ve a brush in your hand applying paint or does it include planning and pondering and development work such as sketching? Every painting carries with it the history of every painting that came before. And there’s that some people wield a brush at a faster pace than others.
If you’re in a situation where time is limited, such as life painting with a model or plein-air painting at sunset, you might adapt how you approach the painting to the time available.
Yet “how long did it take” remains intriguing, something to measure our own painting skills against others and our previous paintings. Perhaps because it’s a tangible thing amongst all the intangibles of art.
I don’t often keep deliberate track of the time I spend painting, but a few days ago I did because I surprised myself when I paused for the first time and realised it’d only been 20 minutes. It had felt like longer and I was intrigued by how far I’d gotten already; my previous paintings at this location had taken me far longer.
When I got to this point, I was conflicted because I felt I wanted to stop but as it’d only been an hour I worried it was it too soon to stop but then would I overwork it if I continued? I took me a bit of pondering to decide it was okay to stop. The question then becomes, do I include this time in how long it took me to paint this?