AEST to UTC Time Converter
Coordinated Universal Time (UTC) is currently 10 hours behind Australian Eastern Standard Time (AEST). AEST is UTC+10 and UTC is UTC+0. The table below converts every hour of the day between the two, and the call planner shows where working hours line up.
Best Time for a Call
There is no overlap between 9:00 AM and 5:00 PM office hours in these two zones. Stretching to early mornings and evenings, the workable window runs from 5:00 PM to 9:00 PM in AEST, which is 7:00 AM to 11:00 AM in UTC. One side ends up outside normal hours, so alternating who takes the awkward slot is a fair way to handle recurring calls.
Comparing more than two places? The Overlap Zones tool shows working hours for several cities on one grid.
Hour by Hour: AEST to UTC
Rows marked office hours fall between 9:00 AM and 5:00 PM in both places. For a specific date, use the interactive converter.
Does the Difference Change During the Year?
AEST and UTC are fixed offsets, so the difference between them never changes.
AEST is UTC+10. Sydney and Melbourne switch to AEDT (UTC+11) from October to April, while Brisbane stays on AEST year round.
UTC is the global time standard. It has no daylight saving and never shifts.
Frequently Asked Questions
How many hours behind is UTC compared to AEST?
UTC is currently 10 hours behind AEST. AEST and UTC are fixed offsets, so the difference between them never changes.
What time is 9:00 AM in AEST in UTC?
9:00 AM in AEST is 11:00 PM in UTC on the previous day.
What is the best time for a call between AEST and UTC?
There is no overlap between 9:00 AM and 5:00 PM office hours in these two zones. Stretching to early mornings and evenings, the workable window runs from 5:00 PM to 9:00 PM in AEST, which is 7:00 AM to 11:00 AM in UTC. One side ends up outside normal hours, so alternating who takes the awkward slot is a fair way to handle recurring calls.