Short Answer 
The process involves creating essential elements such as land, lava, stone, and metal, then developing life by mixing earth and water to produce mud and clay, culminating in the creation of a human. Lastly, a clock is made by combining sand, fire, metal, and glass, which is then merged with the human to produce time.
Create the Essential Elements
Start by creating the basic elements needed for your final combination. First, drag some earth onto the board to make land. Next, combine land with fire to create lava. Then, mix lava with air to form stone, and combine stone with fire to produce metal.
Develop Life and Tools
Once you have metals, focus on creating life. Drag some water onto the board and mix it with earth to create mud. Then, mix mud with stone to form clay. Now, combine clay with life to create a human, which is essential for the next steps.
Making Time
With your human created, it’s time to make a clock and combine it with the human. Add sand to fire to create glass. Then, merge metal with glass to produce a clock. Finally, combining the clock with the human will give you time, completing the process and allowing you to explore further combinations in the game.