mpc-hc/mpc-hc — pull request #14 by Uriziel (2012-09-24 10:30:47+00:00)
Title: Duration reported to api changed to double

It was done the same manner as in #2065
https://github.com/mpc-hc/mpc-hc/commit/b07cd3154f9af344a6bc2d1e29cbfd7fd70ec34e

Might prove compatibility issues, but it's the only time-related value in API that's still reporting in full seconds.