You don’t have to speak machine language to the Queries dialog to get it to do cool things like finding all of yesterday’s mail (for instance). Queries are really smart, and understand plain English where time and dates are concerned. All of the following words are understood and properly parsed by Be’s queries:
yesterday
today
tomorrow
Monday
hour
week
month
year
last
next
and more. That means you can do things like look for all the People files created on your system „last month“ or all the movies accessed since Wednesday, or all e-mails received „after yesterday.“