Comment by alexkus

In most fiber optic cable photons travel at about ~65% of c. The exact number depends on the refractive index of the fiber.

For electricity: Paraphrasing https://en.wikipedia.org/wiki/Speed_of_electricity

The 'Current' travels along a wire at anything between 97% and 60% of c (depending on insulation; more insulation == slower).

Individual electrons in copper wire travel much more slowly. The 'drift velocity' is roughly proportional to the voltage; for low voltage DC it is the order of millimeters per hour.

For AC voltage individual electrons don't have any net movement since they're oscillating back and forth with the alternating current.