I've got the letter from the CIS informing of my AOS interview date.

And I lost it. I remember the date, but not the time and the address

and on my electronic account at uscis web-site this information is not provided. that is strange because usualy all info received from USCIS by email was doubled on-line.

How can I find out the date and place of my interview?

and the most important question - do we need to bring this letter to the interview?

thank you very much for your help!

Oops! Contact your USCIS office ASAP or you can just arrive first thing in the morning. We did not have an AOS Interview so I cannot advise if you need that letter or not..

You do need the letter I would try to contact USCIS.

I've found it!!!!

yes, the first required document in the list is this Interview Notice...