Since 3.0.3, (the patch today) Borrowed time was changed to not go away for instant casts, and increase the spell haste of the next CAST. But, it now is bugged and doesn't go away on instant casts, but it also reduces the Global cooldown as well. Just thought you priests skipping out on this might want to try the talent, this isn't a repost, this is not working as intended, read the talent if you think it is working as intended.