Scheduled Charging is a Tariff Management mode.

When used, the chargers in the location will only charge within a specified timeframe.

This mode is location-based, so you find them in the location's Smart Charging settings, not in the charger settings.

The Start Time represents the time (in your timezone) the chargers in the location will start charging, and the End Time represents the time at which they should stop offering power.

To disable Scheduled Charging, just select Disabled from the Tariff Management modes.