This is the Debian Linux prepackaged version of xarclock, an extended and configurable xclock replacement. This package was put together by Martin Schulze , from sources obtained from: http://www.jwz.org/xdaliclock/ It is now maintained by Florian Ernst . The original tarball was repackaged as there were duplicate files in upstream's release (gtk/xdaliclock.h, gtk/hsv.h). The copyright for xdaliclock is as follows, taken verbatim from xdaliclock.c: