Who Am I? (This is a hard one!

My first is in daylight and also in dark.
My second's in dog but isn't in bark.
My third is in rose and also in flowers.
My fourth is April but isn't in showers.
My fifth is in sunshine but isn't in gloom.
My sixth is in bride but isn't in groom.
My seventh's in red but isn't in grey
My eight's in a birthday that's coming your way!
