Time Difference: Adelaide vs Sydney
Adelaide
1:32:38 PM ACST
Thursday, May 14, 2026
30m
30m
Sydney
2:02:38 PM AEST
Thursday, May 14, 2026
Sydney is 0.5 hours ahead of Adelaide.
Quick Reference
- Adelaide
- ACST (GMT+9:30)
ACDT starts on Oct 3, 2026
- Sydney
- AEST (GMT+10)
AEDT starts on Oct 3, 2026
Frequently Asked Questions
- What is the time difference between Adelaide and Sydney?
- Sydney is 0.5 hours ahead of Adelaide.
- When is the best time to call from Adelaide to Sydney?
- The best time to call is during overlapping business hours (9 AM – 5 PM) in both cities. Use the interactive converter on this page to visually compare hours side by side.
- Does the time difference change with daylight saving time?
- The time difference may change when either city enters or exits daylight saving time. Adelaide uses ACST and Sydney uses AEST.