Here's a sobering reminder of one of the downsides of daylight saving time. Last month the Australian Transport Safety Bureau published its investigation into a fatal accident on 2013-02-08 at 13:45 +1100, as the motor yacht Calliope transited the Glebe Island Bridge in Rozelle Bay, Sydney Harbour. When the ship's master calculated tidal conditions for the transit, he determined that low tide would be at 13:20 local time. However, he forgot to allow for daylight saving time, and the actual low tide was at 14:20. The miscalculation contributed to a botched transit; as the crew positioned a fender to control contact with the bridge structure, an assistant engineer was caught between the yacht's fashion plate and a bridge-mounted fender, was pulled overboard, and died. Crane E. Crewman crushed to death in yacht crash after captain misjudged tide times when the clocks changed. Daily Mail, 2014-05-12. http://www.dailymail.co.uk/news/article-2626707/Crewman-crushed-death-yacht-... Australian Transport Safety Bureau. Fatality on board the motor yacht Calliope. Marine Occurrence Investigation 297-MO-2013-003, 2014-05-12. http://www.atsb.gov.au/publications/investigation_reports/2013/mair/297-mo-2...