Denver to Sydney Time Difference
Sydney is 17 hours ahead of Denver. When it's 10:27:21 AM in Denver, it's 03:27:21 AM in Sydney.
How Many Hours Ahead Is Sydney From Denver?
Sydney is 17 hours ahead of Denver. So Denver is 17 hours behind Sydney looking the other way — the same gap, described from the other end.
In practice that means a working day in Denver starts when it is already 2:00 AM the next day in Sydney. The gap is not fixed all year: it becomes 18 hours on Sunday, November 1, 2026, when Denver changes its clocks.
Best Time to Call Denver and Sydney
Both cities are inside normal business hours between 4:00 PM and 5:00 PM in Denver — that's 9:00 AM to 10:00 AM in Sydney. That's a 1-hour window, so a call fits comfortably in either side's working day.
both at work Denver only Sydney only neither — hours shown along the strip are Denver local time.
Convert a Specific Time
Pick any date and time in Denver to see the exact equivalent in Sydney.
Common Times Converted
Denver time on the left, Sydney time on the right.
Denver to Sydney: Full 24-Hour Conversion Table
Based on today, Sunday, October 11, 2026 in Denver. Shaded rows are working hours; the darker shade marks the hours when both cities are at work.
| Denver | Sydney | Working hours |
|---|---|---|
| 12:00 AM | 5:00 PM | — |
| 1:00 AM | 6:00 PM | — |
| 2:00 AM | 7:00 PM | — |
| 3:00 AM | 8:00 PM | — |
| 4:00 AM | 9:00 PM | — |
| 5:00 AM | 10:00 PM | — |
| 6:00 AM | 11:00 PM | — |
| 7:00 AM | 12:00 AM next day | — |
| 8:00 AM | 1:00 AM next day | — |
| 9:00 AM | 2:00 AM next day | Denver only |
| 10:00 AM | 3:00 AM next day | Denver only |
| 11:00 AM | 4:00 AM next day | Denver only |
| 12:00 PM | 5:00 AM next day | Denver only |
| 1:00 PM | 6:00 AM next day | Denver only |
| 2:00 PM | 7:00 AM next day | Denver only |
| 3:00 PM | 8:00 AM next day | Denver only |
| 4:00 PM | 9:00 AM next day | Both cities |
| 5:00 PM | 10:00 AM next day | Sydney only |
| 6:00 PM | 11:00 AM next day | Sydney only |
| 7:00 PM | 12:00 PM next day | Sydney only |
| 8:00 PM | 1:00 PM next day | Sydney only |
| 9:00 PM | 2:00 PM next day | Sydney only |
| 10:00 PM | 3:00 PM next day | Sydney only |
| 11:00 PM | 4:00 PM next day | Sydney only |
Understanding the Denver – Sydney Time Difference
Denver runs on America/Denver, currently MDT (UTC-6:00). Sydney runs on Australia/Sydney, currently AEDT (UTC+11:00). The gap of 17 hours is simply the distance between those two offsets.
Both cities observe Daylight Saving Time, but they don't switch on the same date — so for a few weeks each year the gap between them is different again. The next shift is on Sunday, November 1, 2026, when Denver adjusts its clocks and the difference becomes 18 hours. Anything scheduled across that date needs checking again.
Full clock-change dates: Daylight Saving Time in the United States · Daylight Saving Time in Australia.
Denver today
Sydney today
Frequently Asked Questions
What is the time difference between Denver and Sydney?
Sydney is currently 17 hours ahead of Denver. That gap becomes 18 hours on Sunday, November 1, 2026, when Denver changes its clocks.
How many hours ahead is Sydney from Denver?
Sydney is 17 hours ahead of Denver. Looking at it the other way, Denver is 17 hours behind Sydney.
What time is it in Sydney when it is 9:00 AM in Denver?
When it is 9:00 AM in Denver, it is 2:00 AM the next day in Sydney.
Is Sydney ahead of or behind Denver?
Sydney is 17 hours ahead of Denver. Sydney reaches each point in the day first, so its working day is already finishing while Denver is still getting started.
What is the best time to call between Denver and Sydney?
Between 4:00 PM and 5:00 PM Denver time, which is 9:00 AM to 10:00 AM in Sydney. Both cities are inside normal business hours during that window.
Does the time difference between Denver and Sydney change during the year?
Yes. Both cities observe Daylight Saving Time, and they do not always switch on the same date, so the gap between them shifts during the year. It changes to 18 hours on Sunday, November 1, 2026.
What time zones are Denver and Sydney in?
Denver uses the America/Denver time zone, currently MDT (UTC-6:00). Sydney uses Australia/Sydney, currently AEDT (UTC+11:00).