quantopian/zipline — pull request #253 by jkp (2013-12-31 19:14:11+00:00)
Title: BUG: adjust benchmark events to match market hours

Previously benchmark events were emitted at 0:00 on the day the
benchmark related to: in 'minute' emission mode this meant that
the benchmarks were emitted before any intra-day trades were
processed.

See: https://github.com/quantopian/zipline/issues/241