Incense are items that lure Pokémon to your location. One activated Incense typically lasts for 30 minutes but may last longer during special events. You can also activate multiple Incense at a time to stack the duration of their effects for up to 24 hours instead of using one every 30 minutes.
Incense in your inventory may change color during special events. If you notice your Incense are a different color than usual, it means you can use them to attract special Pokémon that wouldn’t appear normally. Keep an eye on the Today View to see what in-game events are in progress.
Note: Incense duration has been extended to 1 hour until further notice. Learn more about this change and other changes.