Steps:
1. Draw an oval and reshape it to make the bottom flat.
2. Select the "Mesh" tool and set the fill as ash color; then click the two points marked here.
3. Make a new layer and draw a smaller oval on it. use ash and white gradient and no stroke on it.
4. Make a new layer again and draw a circle and color it same as before but the direction of gradient is opposite.
5. In a new layer draw a rounded rectangle with the "Rounded Rectangle" tool.
6. With the "Type" tool type the hour, minute and second; The "Digital SF" font is used here.
7. Draw a small circle with blue stroke and ash fill.
8. Draw another circle with no stroke and lavender-white gradient fill.
9. Type the function of the button with "type" tool.
10. Similarly draw two more buttons.
11. Draw a black rounded rectangle by the "Rounded Rectangle" tool.
12. Select the "Mesh" tool and set the fill as ash color; then click at near the left side.
13. Digital Clock is drawn.