It should have been available just under C:\Boot instead of you needing to open up the WIM file, but yes part of the file is incomprehensible when viewed in Notepad. But the time zone is displayed clearly in my file, and based on your edited post above, it seems that's the case for you too. Is that time zone correct for you? What time zone do you see in your full Windows environment? And do you have "Automatically switch for Daylight Saving" enabled in your full Windows environment? I ask because it seems that Moscow Standard Time has changed its DST rules a few times in the last few years, so that may be a factor here as well.