On October 3, 2025, Australian clockmakers manually set clocks forward one hour to start daylight saving time, excluding non-participating regions.

On Sunday, October 3, 2025, clockmakers across Australia, including Andrew Markerink in Sydney, will manually advance clocks by one hour at 2 a.m. to begin daylight saving time. The effort spans 28 hours and involves servicing historic clocks in major cities across NSW, Victoria, South Australia, the ACT, and Tasmania, often in challenging conditions. Using GPS watches for precision, they work in isolation, sometimes cheered by onlookers. Markerink, a fourth-generation horologist, finds the work taxing but meaningful, especially at the UNESCO-listed Hyde Barracks clock. Queensland, Western Australia, and the Northern Territory do not observe daylight saving, so their clockmakers are unaffected.