thoughtbot/guides — pull request #225 by geoffharcourt (2014-09-09 22:59:25+00:00)
Title: Add convention for time without date columns

Rails returns times without dates from the database as `Time` objects (as a
time on the date `2000-01-01` in UTC), which can lead to confusion with
actual datetimes. Although we can't make the returned value clearer,
uniformly naming these columns with the suffix `_time` can at least remove
confusion while reading the code.