HourglassSource Ultimate Equipment pg. 57, Adventurer's Armory pg. 19, Advanced Player's Guide pg. 181
Price  25 gp (1 hour), 20 gp (1 minute), 10 gp (6 seconds); Weight 1 lb. (1 hour), 1/2 lb. (1 minute), — (6 seconds)DescriptionThe standard hourglass takes 1 hour to empty the sand from the upper chamber; smaller ones that mark time more precisely are also readily available, in 1-minute and 6-second sizes. Hourglasses tracking more than an hour are rare.
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