Glassomancy- The use of magic and crystals to create a time-tuner, Requirements:

Wand

Cauldron

Glass Crystals

Demiguise extract

Sand

You use the cauldron to melt crystals to a liquid form, once in its liquid state you can mold it into any shape you desire. In order to mold the glass you have to have two people, one must control the flow of sand and the other must control the molding process the glass needs to spin to have equal weight and size on both ends. As it spins both must switch off between the molding process and the flow of sand, and timing is crucial. The sand cannot fill more than half the hourglass, meaning you have to have the exact amount of sand that will fill half the glass and no more otherwise it will not work, and it has to fill exactly half the glass. The sand has to be in constant flow during the process of molding.

Have to use potion making skills, transfiguration, and charms for making an hourglass.

Time Travel there are three T's:

Transition

Translation

Transposition