/usr/share/go-1.8/src/time/ is in golang-1.8-src 1.8.3-2ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/go-1.8/src/time/example_test.go
/usr/share/go-1.8/src/time/export_android_test.go
/usr/share/go-1.8/src/time/export_test.go
/usr/share/go-1.8/src/time/export_windows_test.go
/usr/share/go-1.8/src/time/format.go
/usr/share/go-1.8/src/time/format_test.go
/usr/share/go-1.8/src/time/genzabbrs.go
/usr/share/go-1.8/src/time/internal_test.go
/usr/share/go-1.8/src/time/sleep.go
/usr/share/go-1.8/src/time/sleep_test.go
/usr/share/go-1.8/src/time/sys_plan9.go
/usr/share/go-1.8/src/time/sys_unix.go
/usr/share/go-1.8/src/time/sys_windows.go
/usr/share/go-1.8/src/time/tick.go
/usr/share/go-1.8/src/time/tick_test.go
/usr/share/go-1.8/src/time/time.go
/usr/share/go-1.8/src/time/time_test.go
/usr/share/go-1.8/src/time/zoneinfo.go
/usr/share/go-1.8/src/time/zoneinfo_abbrs_windows.go
/usr/share/go-1.8/src/time/zoneinfo_android.go
/usr/share/go-1.8/src/time/zoneinfo_android_test.go
/usr/share/go-1.8/src/time/zoneinfo_ios.go
/usr/share/go-1.8/src/time/zoneinfo_plan9.go
/usr/share/go-1.8/src/time/zoneinfo_read.go
/usr/share/go-1.8/src/time/zoneinfo_test.go
/usr/share/go-1.8/src/time/zoneinfo_unix.go
/usr/share/go-1.8/src/time/zoneinfo_windows.go
/usr/share/go-1.8/src/time/zoneinfo_windows_test.go