The “I’m Back” routine can’t do it but the “Smart Lights” smartapp can. Look in Marketplace, Smartapps, Lights and Switches category. This app can do the with someone arrives between sunset to sunrise.
Probably, it it done easily on the Wink and Wink 2. I have all of them. You will need some kind of Bluetooth to tag your location. If you had an Ecobee3 you could probably do something with it Sensors. It a real easy robot under the Wink system.
But the OP is already using ST. And ST can do what he wants. This is a ST user forum.
I think this is a good idea too, especially if there’s nothing else associated with the routine.
Alternatively, you could create a new “evening” mode. Then create one routine that changes to evening mode at sunset, and one that changes back to home (or whatever) mode at sunrise. Then your original routine can be restricted to run only during “evening” mode.
All depends on whether one wants to use the built-in smartapps or something more flexible/powerful like CoRE.