Does camping actually speed up healing?

[Toppopia]

I look at my medical supplies and it says it will take 3-6 days to heal everyone. I set up camp and it still says 3-6 days to heal. Is this the correct number or does it not update while camping but automatically deduct 2 days worth of healing while camping?

[Harry Flashman]

It increases hit points faster, but healing of wounds only occurs at midday and isn't affected by camping, I think?

[Love Gun]

"Camping increases the amount of hitpoints you heal per hour, so your guys will be back to full HP quicker, but the injuries take a certain amount of days to heal, no matter how long you camp. It's random and depends on the injury, there's usually a range of days, so for example 1-3 days to heal a light injury, while a heavier injury might take 5-7 days to heal. The temple is the only way to get this to go down faster"
https://steamcommunity.com/app/365360/discussions/0/1291817208506686894/#c1291817208506708315

"Yes camping speeds up healing. Both HP and injuries. If you Camp, injuries will Almost always take the least amount of days. E.g ripped Ear takes 1-3 days. If camping that injury is gone after 1 day."
https://steamcommunity.com/app/365360/discussions/0/1291817208506686894/#c1291817837614893528

"I think camping doubles the healing (HP) and repair rate per hour. Takes the same amount of tools. Healing injuries, I'm not sure. They seem to heal faster but it seems a bit random, and medical supplies are used each day at 'afternoon'."
https://steamcommunity.com/app/365360/discussions/0/135514402723053439/