[ozh]

There are mentions in this article of tricks that may or may not work for you, but in any case, do try F.lux if you haven't already. It's very, very great when working late on the screen.

[wazoox]

For Linux, use redshift (and the companion gtk-redshift GUI).

[henryaj]

Also: orange-tinted glasses. I have delayed sleep phase syndrome as well and am giving them a go.

http://blog.sethroberts.net/2013/11/12/orange-glasses-at-nig...

[sizzle]

Lux for android is a great, (paid) automated solution

[coyotebush]

Twilight (color adjustment is in the free version) works nicely too.