What changes for Sydney, Melbourne, Adelaide, Hobart, and Canberra on October 4
In each of the five DST jurisdictions, the change happens at 2:00 AM local standard time. Clocks jump to 3:00 AM local daylight saving time. Sunrise and sunset shift one hour later relative to civil time.
For Sydney at 33.9 degrees south latitude in October, sunrise moves from roughly 6:35 AM AEST on Saturday October 3 to 7:35 AM AEDT on Sunday October 4.
Sunset moves from roughly 7:00 PM AEST to 8:00 PM AEDT. Daylight in the evening extends by an hour (Time and Date Sydney, October 2026).
For Melbourne, Adelaide, Hobart, and Canberra, the shift pattern is the same. Sydney's AEDT is UTC+11, matching the east coast; Adelaide's ACDT is UTC+10:30 (half an hour off); Hobart's AEDT matches Sydney and Canberra (RBA, 2026).
How the change affects travel and work
Three practical effects on Sunday, October 4, 2026:
- Flights: Sydney-bound and Melbourne-bound flights scheduled in the 1:00-3:00 AM AEDT window depart or arrive on AEDT. Flights crossing the QLD border (Brisbane, Gold Coast) operate on AEST throughout; one-hour shift on the same morning is rare except for east-bound departures from QLD.
- Energy: The Reserve Bank of Australia and the Australian Energy Market Operator adjust market settlement times for the spring forward. Algorithmic energy traders rebalance their scheduling before the switch (AEMO, October 2026).
- TV and radio: Australian broadcasting schedules shift to AEDT. Prime time TV returns to 7:00 PM AEDT, with news bulletins moving one hour later (ABC Australia, October 2026).
The change disrupts sleep more than the autumn forward, given the one-hour loss. Adults lose an average of 40 minutes of sleep on the night of the spring forward (Sleep Health Foundation, 2026).
Lord Howe Island's unique 30-minute DST
Lord Howe Island, administered by NSW, uses a 30-minute DST shift. The island sits at UTC+10:30 standard time and moves to UTC+11 in summer - the only half-hour DST offset in Australia.
The arrangement preserves the island's historical geographic time relationship with Sydney and Brisbane and has been in place since 1981. Phone systems, flight schedules, and ferry timetables handle the half-hour shift as a separate calendar entry.
When DST ends in autumn 2026
The 2026-27 DST window closes on Sunday, April 5, 2026 at 3:00 AM AEDT - clocks fall back to 2:00 AM AEST. The same five jurisdictions revert to standard time; Lord Howe Island goes from 2:30 AM LHDT to 2:00 AM LHST.
DST runs a six-month window in Australia - October through April. Queensland, WA, and NT remain on standard time throughout. The pattern has been stable since 2007; no state is currently considering a DST change (Time and Date, 2026).
What to do today
Three actions before Saturday, October 3, 2026 evening in NSW, VIC, TAS, SA, or ACT:
- Set manual clocks (ovens, watches) forward one hour before bed; smartphone time-zone should be automatic on Australian carriers.
- Confirm meeting and travel appointments scheduled Sunday morning or later against the new AEDT/ACDT time.
- Gradual bedtime shift across the four nights before the change, with -15 minutes per night - the standard sleep clinician recommendation for the spring forward loss.
Cross-border workers in QLD, NT, or WA do not need to adjust clocks. The east coast DST states will be at UTC+11; the non-DST states remain at UTC+10, UTC+9:30, and UTC+8 respectively.
Frequently Asked Questions
Does Sydney change to daylight saving on October 4, 2026?
Yes - Sydney, in NSW, changes at 2:00 AM AEST on Sunday, October 4, 2026. Clocks move to 3:00 AM AEDT. The change is the same across all NSW, including Newcastle, Wollongong, and regional NSW.
Does Melbourne change to daylight saving on October 4, 2026?
Yes - Melbourne, in Victoria, changes at 2:00 AM AEST on Sunday, October 4, 2026. Clocks move to 3:00 AM AEDT. The same date applies statewide across Victoria (Tourism Australia, 2023; Time and Date Victoria, October 2026).
Does Brisbane change to daylight saving on October 4, 2026?
No - Brisbane, in Queensland, stays on AEST (UTC+10) year-round. Queensland does not observe DST. Queensland rejected DST in a 1992 referendum after a three-year trial.
Does Perth change to daylight saving on October 4, 2026?
No - Perth, in Western Australia, stays on AWST (UTC+8) year-round. WA rejected DST in a 2009 referendum after a two-year trial (Time and Date, 2026).
Does Adelaide change to daylight saving on October 4, 2026?
Yes - Adelaide, in South Australia, changes at 2:30 AM ACST on Sunday, October 4, 2026. Clocks move to 3:00 AM ACDT. Note Adelaide shifts only 30 minutes relative to the east coast.
Does Hobart change to daylight saving on October 4, 2026?
Yes - Hobart, in Tasmania, changes at 2:00 AM AEST on Sunday, October 4, 2026. Clocks move to 3:00 AM AEDT. Tasmania was the first Australian jurisdiction to observe DST, in 1968 (Tourism Australia, 2023).
Does Canberra change to daylight saving on October 4, 2026?
Yes - Canberra, in the ACT, changes at 2:00 AM AEST on Sunday, October 4, 2026. Clocks move to 3:00 AM AEDT. The change is synchronous with NSW.
Photo: cogdogblog, CC0, via Wikimedia Commons (https://upload.wikimedia.org/wikipedia/commons/7/74/Sydney_%281795930571%29.jpg?utm_source=commons.wikimedia.org&utm_campaign=imageinfo&utm_content=original)
Fazlur Rahman
