AEDT is the abbreviation for Australian Eastern Daylight Time, a time zone offset of UTC+11. It applies in
Eastern Australia (summer).
It is the daylight-saving half of the year; in winter the same region switches to AEST (UTC+10).
Queensland (Brisbane) stays on AEST year-round and does not switch to AEDT.
Time-zone abbreviations are convenient but not unique or official — several codes are shared by
more than one zone. When precision matters, use the underlying IANA zone name (for example
Australia/Sydney) or the UTC offset UTC+11 instead.
Frequently asked questions
What does AEDT stand for?
AEDT stands for Australian Eastern Daylight Time. It is UTC+11, used in Eastern Australia (summer). Queensland (Brisbane) stays on AEST year-round and does not switch to AEDT.
What is the UTC offset of AEDT?
AEDT (Australian Eastern Daylight Time) is UTC+11, meaning it is 11 hours ahead of Coordinated Universal Time.
What is the standard-time version of AEDT?
AEDT is the summer (daylight saving) abbreviation. Its counterpart is AEST (Australian Eastern Standard Time, UTC+10), used in the other half of the year.