var flux = new Flux();
flux.adjustTemperature();
Will result in night mode being enabled.
var flux = new Flux({date: new Date(2017, 6, 6, 22, 0, 0)});
flux.adjustTemperature();
Flux instance will have time updated every minute. If user browser time hits range between sunset and sunrise Flux would turn night mode and will disable it during day time.
var flux = new Flux();
flux.adjustTemperature();
setInterval(function() {
flux.setDate(new Date());
flux.adjustTemperature();
}, 60000);