Answer by example:
$ rails console
1.9.3-p0 :001 > today = Date.today
=> Fri, 03 Feb 2012
1.9.3-p0 :002 > tomorrow = Date.today + 1.day
=> Sat, 04 Feb 2012
1.9.3-p0 :003 > orders = Order.where(:created_at => today...tomorrow)
Order Load (0.7ms) SELECT "orders".* FROM "orders" WHERE
("orders"."created_at" >= '2012-02-03' AND "orders"."created_at" <
'2012-02-04')
--
Posted via http://www.ruby-forum.com/.
Be sure to check your timezones...
Date.today does not honor the timezone set within Rails...
You might want to use Time.zone.now.to_date instead...
-philip