Complex sentence: On the last day of 2000 (day 366) these systems exhibited various errors, these were generally minor, apart from reports of some Norwegian trains that were delayed until their clocks were put back by a month.
Split into simpler sentences: On the last day of 2000 (day 366) these systems exhibited various errors. These were generally minor, apart from reports of some Norwegian trains that were delayed until their clocks were put back by a month.