The latest version of iOS/HomeKit has 'adaptive lighting'. You select that colour option and it will modify the temperature automatically throughout the day. You have very little manual control over it but sounds like what you might be looking for.
It's even easier post-internet. Your clocks automatically change for you now. In the past you had to remember when the change occurred and updated all your clocks manually - and if you forgot you ended up an hour late/early to any Sunday appointment after the change.