Time Difference Between Cardiff and Sydney
Sydney is 9 hours ahead Cardiff.
United Kingdom
Cardiff
Europe/London · UTC+1
Australia
Sydney
Australia/Sydney · UTC+10
Best Times to Meet
Hours where standard working time (9 AM – 6 PM) overlaps in both Cardiff and Sydney.
Standard working hours don't overlap between Cardiff and Sydney. Consider early-morning calls in Cardiff or late-evening calls in Sydney.
Cardiff to Sydney — 24-Hour Conversion
Each row shows the equivalent local time in Sydney for an hour in Cardiff. Working-hours rows (9–18) are highlighted.
| Cardiff | Sydney | Match |
|---|---|---|
| Workday in Sydney | ||
| Workday in Sydney | ||
| Workday in Sydney | ||
| Workday in Sydney | ||
| Workday in Sydney | ||
| Workday in Sydney | ||
| Workday in Sydney | ||
| Workday in Sydney | ||
| Workday in Sydney | ||
| Workday in Cardiff | ||
| Workday in Cardiff | ||
| Workday in Cardiff | ||
| Workday in Cardiff | ||
| Workday in Cardiff | ||
| Workday in Cardiff | ||
| +1 day | Workday in Cardiff | |
| +1 day | Workday in Cardiff | |
| +1 day | Workday in Cardiff | |
| +1 day | Off hours | |
| +1 day | Off hours | |
| +1 day | Off hours | |
| +1 day | Off hours | |
| +1 day | Off hours | |
| +1 day | Off hours |
Frequently Asked Questions
What is the time difference between Cardiff and Sydney?
Sydney, Australia (UTC+10) is 9 hours ahead Cardiff, United Kingdom (UTC+1).
What is the best time to schedule a meeting between Cardiff and Sydney?
The best meeting times overlap when both cities are within standard working hours (9 AM – 6 PM). The full hour-by-hour table on this page lists every overlap window.
Does daylight saving time change the difference between Cardiff and Sydney?
Yes — when one city observes daylight saving time and the other does not, the gap shifts by an hour. The conversion table on this page reflects the current offset, including any active DST.
When it is 9 AM in Cardiff, what time is it in Sydney?
Use the conversion table on this page — every hour in Cardiff is mapped to its equivalent local time in Sydney, including day shift markers when the date differs.