Is there a special name for the day between Easter and Good Friday?

I have always called it Sad Saturday in an effort to highlight the despair the disciples must have felt after seeing their Lord killed. [This answer](https://christianity.stackexchange.com/questions/6184/what-is-the-connection-between-mardi-gras-fat-tuesday-ash-wednesday-lent-etc/6187#6187) covers a lot of those days in there (most clearly come from Catholic tradition), but only refers to the Saturday between Good Friday and Easter as the last day of the Holy Triduum. Is there a special name, from any tradition, for the day between Easter and Good Friday?