Greenwich Mean Time
GMT means UTC throughout the year.
TIME ZONE CONVERTER
GMT to Sydney
Time Converter
Convert Greenwich Mean Time to Sydney, Australia. Compare dates, seasonal differences and meeting hours.
GMT is 10h or 11h behind Sydney in 2026, depending on the date.
9 AM GMT = 8 PM Sydney
Selected date: November 4, 2026. Fixed abbreviations retain their stated UTC offsets.
THE QUICK REFERENCE
CSVGMT to Sydney conversion table
November 4, 2026 · Date changes are marked.
View the full 24-hour table
| GMT | Sydney |
|---|---|
| 12:00 AM | 11:00 AM |
| 1:00 AM | 12:00 PM |
| 2:00 AM | 1:00 PM |
| 3:00 AM | 2:00 PM |
| 4:00 AM | 3:00 PM |
| 5:00 AM | 4:00 PM |
| 6:00 AM | 5:00 PM |
| 7:00 AM | 6:00 PM |
| 8:00 AM | 7:00 PM |
| 9:00 AM | 8:00 PM |
| 10:00 AM | 9:00 PM |
| 11:00 AM | 10:00 PM |
| GMT | Sydney |
|---|---|
| 12:00 PM | 11:00 PM |
| 1:00 PM | 12:00 AM +1 day |
| 2:00 PM | 1:00 AM +1 day |
| 3:00 PM | 2:00 AM +1 day |
| 4:00 PM | 3:00 AM +1 day |
| 5:00 PM | 4:00 AM +1 day |
| 6:00 PM | 5:00 AM +1 day |
| 7:00 PM | 6:00 AM +1 day |
| 8:00 PM | 7:00 AM +1 day |
| 9:00 PM | 8:00 AM +1 day |
| 10:00 PM | 9:00 AM +1 day |
| 11:00 PM | 10:00 AM +1 day |
Starting with the Sydney working day
These examples start on 2026-11-04 in Sydney.
09:00 Sydney22:00 →GMT · 2026-11-03
17:00 Sydney06:00 →GMT · 2026-11-04
Which time-zone meaning are we using?
ONE CLOCK TIME. THE WHOLE YEAR.
Year CSV09:00 GMT to Sydney throughout 2026
Keeping 09:00 on the GMT clock produces 2 different destination clock/date answers in 2026. The ranges below use GMT calendar dates, including transition days.
| Dates in GMT · 2026 | Sydney answer | Source → destination offsets | Explore |
|---|---|---|---|
| Jan 1 – Apr 494 dates | 20:00Same date | UTC → UTC+11:00 | |
| Apr 5 – Oct 3182 dates | 19:00Same date | UTC → UTC+10:00 | |
| Oct 4 – Dec 3189 dates | 20:00Same date | UTC → UTC+11:00 |
Every calendar date is included, not just workdays. Date ranges include both endpoints. Based on IANA 2026e; future rules may change.
DON’T LOSE A DAY
When does GMT time become a different date in Sydney?
Your complete source day: 2026-11-04. Each range shows which destination date to use.
GMT · 2026-11-0400:00–13:00UTC
Sydney · 2026-11-0411:00–24:00UTC+11:00 Same date
GMT · 2026-11-0413:00–24:00UTC
Sydney · 2026-11-0500:00–11:00UTC+11:00 Next day
Range starts are included; ends are excluded. 24:00 means midnight at the end of that date. Repeated hours appear separately with their UTC offsets. The strip is proportional to elapsed time.
THE BIGGER PICTURE
2026A year of time differences.
How Sydney compares with GMT throughout 2026.
JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC
+11h
+10h
+11h
Sydney changes its UTC offset in 2026. GMT is a fixed offset.
See exact change periods
| From (UTC, inclusive) | Until (UTC, exclusive) | Sydney vs GMT |
|---|---|---|
| 1 Jan 2026, 00:00 UTC | 4 Apr 2026, 16:00 UTC | 11h ahead |
| 4 Apr 2026, 16:00 UTC | 3 Oct 2026, 16:00 UTC | 10h ahead |
| 3 Oct 2026, 16:00 UTC | 1 Jan 2027, 00:00 UTC | 11h ahead |
CLOCK CHANGES
What changes at the next clock adjustment?
Exact periods outside the most common difference in 2026
The most frequent difference has Sydney 11h ahead relative to GMT. Exceptions:
| From (UTC, inclusive) | Until (UTC, exclusive) | Compared with GMT |
|---|---|---|
| 4 Apr 2026, 16:00 UTC | 3 Oct 2026, 16:00 UTC | 10h ahead |
PLAN BEYOND A SINGLE DAY
Daily CSVGMT–Sydney working hours through 2026
Every date calculated with your working windows. 261 selected GMT workdays; public holidays are not applied.
Least shared time0h
Most common0h
Most shared time0h
Days without a 60-min slot261 / 261
One fixed start time does not fit every working day.
Your working windows never overlap on the selected host workdays this year. Adjust working days, hours or duration above, or use different seasonal meeting times.
GMT: 09:00–17:00, Mon, Tue, Wed, Thu, Fri. Sydney: 09:00–17:00, Mon, Tue, Wed, Thu, Fri.
Calculation details and repeated hours
Overnight shifts belong to their start weekday. Host workday means the source calendar date. Repeated local times use the first occurrence.
THE DETAILS THAT MATTER
GMT to Sydney: useful answers
Why is the GMT to Sydney difference sometimes 10 hours and sometimes 11 hours?
GMT is 10h or 11h behind Sydney in 2026, depending on the date. Sydney changes its UTC offset in 2026. GMT is a fixed offset.
Does the GMT–Sydney time difference change in 2026?
The published rules produce 3 periods with 2 different offsets in 2026. See the annual chart for the exact boundaries of each period.
Does this conversion change the calendar date?
09:00 in GMT on 2026-11-04 is 20:00 in Sydney on 2026-11-04. This selected time stays on the same date in both places. Other times can cross midnight.
Can GMT and Sydney meet during working hours?
Your selected working windows have no shared time on 2026-11-04. The planner shows alternatives and how many minutes fall outside each person's working hours. Try another date or adjust the windows.
Calculated with IANA 2026e. Working hours are your preferences; public holidays and calendar availability are not included. Our methodology