Hayward AQ-SOL-LV-TC AquaSolar® Time Clock. AquaSolar® Time Clock model provides all the capabilities of the AquaSolar plus an integral time clock for 24-hour control of the pool's main pump and filtration system. The time clock is programmable in 15-minute increments and can have multiple on/off times. There’s also an exclusive solar override feature that maximizes solar gain while minimizing electricity usage.