Since Time Is Gravity is an album by the Natural Information Society Community Ensemble, led by double bassist and guimbri player Joshua Abrams.

On the album, Abrams is joined by alto saxophonists Nick Mazzarella and Mai Sugimoto, bass clarinetist Jason Stein, cornetists Josh Berman and Ben Lamar Gay, harmonium player Lisa Alvarado, harpist Kara Bershad, percussionists Mikel Patrick Avery and Hamid Drake, and a guest artist, tenor saxophonist Ari Brown.

"[5] In a review for AllMusic, Thom Jurek wrote: "Since Time Is Gravity returns NIS to their exploratory rhythm and overtone roots even as they make more room for jazz harmony and rhythmic sensibilities while highlighting the abundance of soloists among them.

"[6] Pitchfork's Jonathan Williger described the album as "a suite of vivid snapshots of eternity, a concept that should be oxymoronic but which feels completely natural in Abrams' hands."

"[8] Writing for PopMatters, Bruce Miller remarked: "Natural Information Society releases have allowed featured players to alter the music sonically without compromising the pulse at the root of their output.