o_zone_offset     699 maint/gnulib/lib/parse-datetime.y   | tUNUMBER ':' tUNUMBER o_zone_offset
o_zone_offset     704 maint/gnulib/lib/parse-datetime.y   | tUNUMBER ':' tUNUMBER ':' unsigned_seconds o_zone_offset
o_zone_offset     711 maint/gnulib/lib/parse-datetime.y o_zone_offset: