For those with issues with the "yesterday" feature of the call log...

[Jonny Kansas]

I was recently part of a discussion on the call log in which people don't like that "yesterday" is figured by a 24 hr period instead of by day name.

Couldn't find that thread again, but I found a solution for you!

CallTrack Android App Lists All Calls On A Google Calendar - Calltrack android - Gizmodo

Calltrack puts your calls on a Google calendar. Hope it helps you out!