Time Difference: Adelaide vs St. John's
Adelaide
5:36:09 PM ACST
Thursday, May 14, 2026
12h
12h
St. John's
5:36:09 AM NDT
Thursday, May 14, 2026
St. John's is 12 hours behind Adelaide.
Quick Reference
- Adelaide
- ACST (GMT+9:30)
ACDT starts on Oct 3, 2026
- St. John's
- NDT (GMT-2:30)
NST starts on Nov 1, 2026
Frequently Asked Questions
- What is the time difference between Adelaide and St. John's?
- St. John's is 12 hours behind Adelaide.
- When is the best time to call from Adelaide to St. John's?
- 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 St. John's uses NDT.