A lighting system, comprising: a lighting load comprising a plurality of light source elements having different kinds of correlated color temperatures; a lighting control device configured to: adjust a correlated color temperature and an illuminance obtained from the lighting load, in accordance with schedule information stored in a storage unit, by adjusting each light output of the light source elements, adjust a light output of the lighting load to a first light output corresponding to a first correlated color temperature and a first illuminance in a first time slot, in accordance with the schedule information, and decrease the light output of the lighting load up to a second light output with the passage of time in a second time slot after the first time slot, in accordance with the schedule information, the second light output corresponding to a second correlated color temperature and a second illuminance; and a human detector configured to detect the presence or non-presence of a person in an installation space of the lighting load; characterized in that the lighting control device is configured to: adjust a light output of the lighting load to the first light output in the first time slot and also to decrease the light output of the lighting load up to the second light output with the passage of time in the second time slot, when the human detector is detecting the presence of a person; and change the first light output to a light output corresponding to the first correlated color temperature and a lower illuminance than the first illuminance in the first time slot and also to change the second light output to a light output corresponding to the second correlated color temperature and a lower illuminance than the second illuminance in the second time slot, when the human detector is detecting the non-presence of a person. a lighting load comprising a plurality of light source elements having different kinds of correlated color temperatures; a lighting control device configured to: adjust a correlated color temperature and an illuminance obtained from the lighting load, in accordance with schedule information stored in a storage unit, by adjusting each light output of the light source elements, adjust a light output of the lighting load to a first light output corresponding to a first correlated color temperature and a first illuminance in a first time slot, in accordance with the schedule information, and decrease the light output of the lighting load up to a second light output with the passage of time in a second time slot after the first time slot, in accordance with the schedule information, the second light output corresponding to a second correlated color temperature and a second illuminance; and adjust a correlated color temperature and an illuminance obtained from the lighting load, in accordance with schedule information stored in a storage unit, by adjusting each light output of the light source elements, adjust a light output of the lighting load to a first light output corresponding to a first correlated color temperature and a first illuminance in a first time slot, in accordance with the schedule information, and decrease the light output of the lighting load up to a second light output with the passage of time in a second time slot after the first time slot, in accordance with the schedule information, the second light output corresponding to a second correlated color temperature and a second illuminance; and a human detector configured to detect the presence or non-presence of a person in an installation space of the lighting load; characterized in that the lighting control device is configured to: adjust a light output of the lighting load to the first light output in the first time slot and also to decrease the light output of the lighting load up to the second light output with the passage of time in the second time slot, when the human detector is detecting the presence of a person; and change the first light output to a light output corresponding to the first correlated color temperature and a lower illuminance than the first illuminance in the first time slot and also to change the second light output to a light output corresponding to the second correlated color temperature and a lower illuminance than the second illuminance in the second time slot, when the human detector is detecting the non-presence of a person. adjust a light output of the lighting load to the first light output in the first time slot and also to decrease the light output of the lighting load up to the second light output with the passage of time in the second time slot, when the human detector is detecting the presence of a person; and change the first light output to a light output corresponding to the first correlated color temperature and a lower illuminance than the first illuminance in the first time slot and also to change the second light output to a light output corresponding to the second correlated color temperature and a lower illuminance than the second illuminance in the second time slot, when the human detector is detecting the non-presence of a person.