Idea of Hourglass Icon
It's a logo of an Hourglass, reduced to an image of an Hourglass. An Hourglass looks like the two wine cups held together without their stems in opposite directions. After the glass there is something to hold the matter in place in order to tell time.
This Hourglass icon is made in Material Design style
developed by Google. This style is based on extremely simplified shapes, thin two-pixel lines, and is optimized for 24x24 px. Unlike other vector icon packs that have merely hundreds of icons, this icon pack contains 6,100 icons, all in the same style and quality.