Nusakana

The game is built almost completely around time management, and its importance is made very obvious at the very beginning of the game where you must decide on whether you want to explore the island (which is overwhelming enough at first and then becomes even larger once new time-gated areas open up), take part in time-consuming events scattered around or build up money to keep yourself supplied with items and stronger equipment (the weapon system where you have unique skills for the different weapon categories is really cool in particular) through hunting, fishing and gathering quests.

Nusakana is an entirely non-linear and pretty much open world RPG with an insanely good bossa nova-ish soundtrack, made completely with custom assets and with tons of content & replay value, all in an extremely ambitious RPG Maker project that looks nothing like you'd expect out of a RPG Maker game.