The object touched sheds light as bright as full daylight in a
60-foot radius. Creatures who suffer penalties in bright light
suffer them while exposed to this magical light. If the spell is
cast on a small object that is then placed inside or under a
lightproof covering, the spells effects are blocked until
the covering is removed.
Daylight brought into an area of magical darkness (or vice
versa) is temporarily negated, so that the otherwise prevailing
light conditions exist in the overlapping areas of effect.
Daylight counters or dispels any darkness spell of equal or
lower level, such as darkness.