CDT to AEST Time Converter
Australian Eastern Standard Time (AEST) is currently 15 hours ahead of Central Daylight Time (CDT). CDT is UTC-5 and AEST is UTC+10. 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
Both sides are inside 9:00 AM to 5:00 PM office hours between 9:00 AM and 5:00 PM in CDT, which is 9:00 AM to 5:00 PM in AEST.
Comparing more than two places? The Overlap Zones tool shows working hours for several cities on one grid.
Hour by Hour: CDT to AEST
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?
CDT and AEST are fixed offsets, so the difference between them never changes.
CDT is UTC-5, the summer counterpart of CST. Central North America uses it from March to November.
AEST is UTC+10. Sydney and Melbourne switch to AEDT (UTC+11) from October to April, while Brisbane stays on AEST year round.
Frequently Asked Questions
How many hours ahead is AEST compared to CDT?
AEST is currently 15 hours ahead of CDT. CDT and AEST are fixed offsets, so the difference between them never changes.
What time is 9:00 AM in CDT in AEST?
9:00 AM in CDT is 12:00 AM in AEST on the next day.
What is the best time for a call between CDT and AEST?
Both sides are inside 9:00 AM to 5:00 PM office hours between 9:00 AM and 5:00 PM in CDT, which is 9:00 AM to 5:00 PM in AEST.