https://www.timeanddate.com/time/change/australia/sydney
Oct 4
Forward 1 hour
Oct 4, 2020 - Daylight Saving Time Starts
When local standard time is about to reach
Sunday, October 4, 2020, 2:00:00 am clocks are turned forward 1 hour to
Sunday, October 4, 2020, 3:00:00 am local daylight time instead.
Sunrise and sunset will be about 1 hour later on Oct 4, 2020 than the day before. There will be more light in the evening.
Also called Spring Forward, Summer Time, and Daylight Savings Time.