hackerinspiration
Using ActiveRecord to query for times within a range

Just discovered this, something I wish I knew a LONG time ago.

Album.where(:created_at => 2.days.ago..Time.now)

Which will generate the following SQL query (depending on the database):

SELECT "albums".* FROM "albums" WHERE ("albums"."created_at" BETWEEN '2012-04-28 11:10:22.780712' AND '2012-04-30 11:10:22.780907')
rubyquicktips

You can pass a range to query for records within that range:

Source: hackerinspiration-blog
rubyonrails