Better way to change blog publish dates?

Hello world,

I am currently importing a huge library of old blog posts (almost going back to 2010). Our old site is not accessible anymore so I have to do it manually. So each time I import a post from the past, I have to change the date using the calendar and if it's from a few years ago, it takes like 400 clicks. Is there any way to get some way to manually input dates on blog post publish dates? Thanks

Our website: https://www.aurovilleradiotv.org/