Hello, in both the PDF and HTML versions of the manual, in section 8.2.1, you can read:
"You can specify a time range by giving start and end times or by giving a start time and a duration (in HH:MM format). Use `-' or `-{}-' as the separator" The correct output should instead mention: "Use `-' or '--' as the separator" Maybe an export problem ? For the record, this is Debian bug #632158[0]. Cheers, --Seb [0] http://bugs.debian.org/632158