Visiting Versailles on day 2 of arrival/jet lag?

For me, that would be absolutely fine—I tend to be awake and ready to do things quite early the second day, usually stay awake til maybe 8-9 pm on arrival day and that gets me adjusted. Do you know how jet lag affects you, or is this your first go at it?

everyone reacts differently. For some reason, day 3 can be bad for me.
You could consider doing the gardens and grounds first to keep up the sunlight and exercise, putting the palace later in the day after the tours are more likely gone. I am seeing some recommendations of that (due to crowding) on the Versailles website. Nothing says you have to be in line before palace opening.

My highest priority would be to go on a day likely to to have fewer visitors. So, perhaps Monday, Wednesday, or Thursday? In terms of jet lag, I'm usually up for anything day 2, though around 7pm, I'm needing to work a bit to stay awake at dinner.

everyone reacts differently. For some reason, day 3 can be bad for me.

This is me too -- (assuming day 1 is arrival day from transatlantic flight). The night of day 1 I'm usually so tired from not having slept on the flight that I will pass out easily and sleep the full night.

This makes for an easy and alert day 2, but it's the night of day 2 that I often have problems because I'm not quite as exhausted and my body's non-adjusted circadian rhythm becomes more insistent.

I agree with the above. How many days are you in Paris? What time of year? Versailles is amazing but tiring due to all the walking and the security lines just to get in. Also, found the heat can get you also. You may want to build up to it but if that is the only day, I say go for it.

You need to have a plan for dealing with jet lag. It can have a very negative effect. Over years we have developed a system that works well for us. For years we tried to stay awake, walk in the sun, gut it out, and go to bed around 8pm and wide awake around 3,4 am. One year, by accident, we took a nap between 2-4, 3-5 and were significantly recharge so that we could enjoy the evening, and a more normal bed time of 10,11pm. So that is our current pattern and works well for us. The second day we are always a little sluggish but by the third day we are on the local schedule. We do set an alarm for a max of 2 hours but seem to wake up around 1.45 mark with no difficulties.

I like planning an early tour or activity for my 2nd day in country because I've usually gone to bed somewhat early the evening before and find myself wide awake at 4 or 5am.

I am fine the second day. Some still struggle.

We landed and went to tour the Eiffel Tower, then walked back along the river. The next morning, we did the Tuesday (or was it Wednesday?) morning tour of Versailles, then went back to the Louvre because it was open that evening... Pretty sure it was Wednesday, because I think Rick said Tuesday at Versailles is a drag, and the evening in the Louvre was great. Check his guidebook and do what he said. We did that and loved both places without many tourists...