Electric current always flows in the opposite direction.

Electric current is defined as the rate at which electric charge flows.

Ampere is the SI unit for electric current (A)

Electric current (I) = Charge (Q)$/$time (t)

The flow of positive charges is what allows the current to flow. This is known as conventional current flow, or current flow in the direction of positive charges.

The conventional current flows in the same direction as the positive charge, from greater potential (positive) to lower potential (negative) (negative).

After the discovery of electrons, it was recognized that electrons are the particles that flow in a conductor.

Negatively charged electrons move from the voltage source's negative terminal to the positive terminal. As a result, the current should flow from the negative terminal to the positive terminal.

Electric current is caused by electrons moving from a lower potential (negative) to a higher potential (positive), hence the direction of electric current is the polar opposite of conventional current.

As a result, in metallic conductors, the direction of electric current is always the inverse of the direction of conventional current.