Nevertheless, the blessing does still have an effect. The magnitude is displayed as '0%' (truncated from 0.2). ^2The details of the Blessing of Talos are bugged when viewed in-game. In addition, the Dragonborn expansion adds three Daedric blessings, all available from the temple in Raven Rock.

Fortify Restoration, 10 pts for 8 hours.

You are 10% more effective with missile weapons. So a blessing lasting 12 hours will be active during 12 playing hours. Shrine blessings are active for a period of time measured in real time, not in-game time. If you choose to pray at a second shrine, it will overwrite the previous blessing. You can only have one shrine blessing at a time.

The Shrine of Nocturnal is located inside the Ragged Flagon Cistern, once you are midway through the Thieves Guild quest line.

Locations of the shrines of the Eight (or Nine) Divines, including those for Auriel added by Dawnguard, are listed at Shrines.

Blessings are bestowed by praying at (activating) a shrine to the specified deity.

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