/usr/share/ is in indicator-datetime 15.10+16.04.20160406-0ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/glib-2.0/
/usr/share/unity/
/usr/share/unity/indicators/
/usr/share/unity/indicators/com.canonical.indicator.datetime
/usr/share/doc/
/usr/share/doc/indicator-datetime/
/usr/share/doc/indicator-datetime/copyright
/usr/share/doc/indicator-datetime/changelog.Debian.gz
/usr/share/upstart/
/usr/share/upstart/xdg/
/usr/share/upstart/xdg/autostart/
/usr/share/upstart/xdg/autostart/indicator-datetime.desktop
/usr/share/upstart/sessions/
/usr/share/upstart/sessions/indicator-datetime.conf
/usr/share/glib-2.0/schemas/
/usr/share/glib-2.0/schemas/com.canonical.indicator.datetime.gschema.xml