Clockjumper

Time difference

Melbourne to Seattle Time Difference

Seattle is 18 hours behind Melbourne — when it's 12:00 PM in Melbourne, it's 6:00 PM the previous day in Seattle. (Melbourne (Australia/Melbourne, AEDT); Seattle (America/Los_Angeles, PDT).) Below: live local times, the best hours for a call, a full conversion table, and exact daylight-saving dates.

Quick answer

Seattle is 18 hours behind Melbourne. The best window for a call is 9 AM–11 AM in Melbourne, which is 3 PM–5 PM in Seattle — a 2-hour overlap inside 9 AM–5 PM on both sides. Clocks change on November 1, 2026, which briefly shifts the gap between Melbourne and Seattle — the converter on this page always reflects the correct offset for the date you pick.

  • When it's 9:00 AM in Melbourne, it's 3:00 PM the previous day in Seattle.
  • When it's 9:00 AM in Seattle, it's 3:00 AM the next day in Melbourne.

Seattle is currently 18 hours behind Melbourne.

Melbourne • AEDT
4:47 AM
Tuesday, Oct 13
Seattle • PDT
10:47 AM
Monday, Oct 12

Interactive converter

From

12:00PM

To

Select both cities to see the converted time.

Pick a time to convert
:

Best times to meet

The 9 AM – 5 PM business windows in Melbourne and Seattle overlap for 2 hours. 9 AM–11 AM in Melbourne is 3 PM–5 PM in Seattle. Aim somewhere in the middle of that window so neither side starts cold or finishes drained.

Quick conversion table

MelbourneSeattle
12 AM6:00 AM (prev day)
1 AM7:00 AM (prev day)
2 AM8:00 AM (prev day)
3 AM9:00 AM (prev day)
4 AM10:00 AM (prev day)
5 AM11:00 AM (prev day)
6 AM12:00 PM (prev day)
7 AM1:00 PM (prev day)
8 AM2:00 PM (prev day)
9 AM3:00 PM (prev day)
10 AM4:00 PM (prev day)
11 AM5:00 PM (prev day)
12 PM6:00 PM (prev day)
1 PM7:00 PM (prev day)
2 PM8:00 PM (prev day)
3 PM9:00 PM (prev day)
4 PM10:00 PM (prev day)
5 PM11:00 PM (prev day)
6 PM12:00 AM
7 PM1:00 AM
8 PM2:00 AM
9 PM3:00 AM
10 PM4:00 AM
11 PM5:00 AM

Daylight saving

On November 1, 2026, Seattle shifts for daylight saving. After that, Seattle will be 19 hours behind Melbourne (currently 18 hours behind Melbourne). The converter and the tables above always reflect the correct offset for the date you pick.

  • Melbourne is currently observing daylight saving time.
  • Seattle is currently observing daylight saving time.

Frequently asked questions

Is Seattle ahead of or behind Melbourne?
Seattle is 18 hours behind Melbourne.
How many hours behind Melbourne is Seattle?
Seattle is 18 hours behind Melbourne.
What time is 9 AM in Melbourne in Seattle?
9:00 AM in Melbourne is 3:00 PM the previous day in Seattle.
What time is noon in Melbourne in Seattle?
12:00 PM in Melbourne is 6:00 PM the previous day in Seattle.
What time is 5 PM in Melbourne in Seattle?
5:00 PM in Melbourne is 11:00 PM the previous day in Seattle. Useful for end-of-day handoffs between the two offices.
What time is 3 PM in Melbourne in Seattle?
3:00 PM in Melbourne is 9:00 PM the previous day in Seattle.
Is Melbourne currently observing daylight saving time?
Melbourne is currently observing daylight saving time (summer time).
Is Seattle currently observing daylight saving time?
Seattle is currently observing daylight saving time (summer time).
Do Melbourne and Seattle observe daylight saving?
On November 1, 2026, Seattle shifts for daylight saving. After that, Seattle will be 19 hours behind Melbourne (currently 18 hours behind Melbourne). The converter and the tables above always reflect the correct offset for the date you pick.
When is the best time to call Seattle from Melbourne?
Aim for 9 AM–11 AM in Melbourne, which is 3 PM–5 PM in Seattle.
When is the best time to call Melbourne from Seattle?
Aim for 3 PM–5 PM in Seattle, which is 9 AM–11 AM in Melbourne.
Melbourne (AEDT) to Seattle (PDT) — how do I convert quickly?
Subtract 18 hours from Melbourne local time to get Seattle local time. Or use the converter at the top of this page — it stays accurate through daylight-saving changes automatically.