

Lord Howe Island moves from LHST to Lord Howe Daylight Time (LHDT), and clocks are advanced to UTC +11. NSW (except Broken Hill and Lord Howe Island), the Australian Capital Territory, Victoria and Tasmania move from AEST to Australian Eastern Daylight Time (AEDT), and clocks are advanced to UTC +11. In periods of daylight saving an hour is added to the Local Standard Time (except for on Lord Howe Island where 30 minutes is added). Maybe you should check the difference between Eastern Time (EST) and Coordinated Universal Time (UTC) instead.

Daylight saving or summer time is commonly expressed as AEDT (Australian Eastern Daylight Time).
