ADT SydneyTime Converter

ADT (UTC−3) is currently 14 hours behind Sydney (AEDT, UTC+11). Compare live clocks, convert any hour, and find times to meet.

Live •DST-aware •Shareable URLs
 
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Meeting planner

Best time to meet between ADT and Sydney

Best meeting times:

ADT: 5:00 PM – 6:00 PM

Sydney: 7:00 AM – 8:00 AM

ADT UTC−3
Sydney AEDT · UTC+11
Find best time to meet

Quick answer

When it's in ADT, it's the same day in Sydney.

ADT runs 14 hours behind Sydney (AEST/AEDT). A 9-to-5 workday on one side lands in the other side's evening or night, so the two cities share almost no normal working hours: edge-of-day calls are the trick.

Time difference
+14h 00m
ADT
UTC−3
Sydney
UTC+11
Best call window
Outside 9–6
Hour by hour

ADT to Sydney conversion table

The next 12 hours in ADT and the matching local time in Sydney. The current hour is highlighted; drag the converter's slider and the table follows.

Hourly conversion from ADT to Sydney
ADT Sydney · AEDT Sydney status
NOW
Sun, Oct 25
Sun, Oct 25
 DayWork hours
Sun, Oct 25
Sun, Oct 25
 DayWork hours
Sun, Oct 25
Sun, Oct 25
 DayWork hours
Sun, Oct 25
Sun, Oct 25
 Night
Sun, Oct 25
Sun, Oct 25
 Night
Sun, Oct 25
Sun, Oct 25
 Night
Sun, Oct 25
Sun, Oct 25
 Night
Sun, Oct 25
Sun, Oct 25
 Night
Sun, Oct 25
Sun, Oct 25
 Night
Sun, Oct 25
Mon, Oct 26
 Night
Sun, Oct 25
Mon, Oct 26
 Night
Sun, Oct 25
Mon, Oct 26
 Night
Good to know

Daylight saving shifts this gap by up to 2 hours

The difference between ADT and Sydney swings between 13, 14 and 15 hours across the year as each side starts or ends daylight saving. ADT is the daylight-saving counterpart of AST (UTC−4). Clocks in Sydney move back 1 hour to AEST (UTC+10) on Sunday, April 4, 2027. This page always shows the live, DST-aware difference.

Keep converting

Related time zone conversions

Jump straight to another pair: every combination is a live tool, not an article.

UTC, Zulu & reference

UTC → Sydney
Coordinated Universal to Australia
Zulu time (UTC)
Live military clock
Built for humans and machines

One source of truth, for you and your AI

This page exposes the same answer as structured data, so when you ask an assistant "what's 9am ADT time in Sydney?", it can cite the exact, DST-aware result, not a stale blog post.

  • Schema.org JSON-LD on every converter page
  • A machine-readable facts island with time zone identifiers and every possible offset
  • Live times in <time datetime> elements with explicit UTC offsets
JSON #timezone-pair-data · embedded in this page
{
  "pair": "ADT → Sydney",
  "url": "https://worldclock.pro/en/convert/adt-to-sydney",
  "from": {
    "name": "ADT",
    "type": "timezone",
    "abbreviation": "AST",
    "daylightAbbreviation": "ADT",
    "iana": "America/Halifax",
    "standardUtcOffset": "-04:00",
    "daylightUtcOffset": "-03:00",
    "referenceCity": "Halifax"
  },
  "to": {
    "name": "Sydney",
    "type": "city",
    "abbreviation": "AEST",
    "daylightAbbreviation": "AEDT",
    "iana": "Australia/Sydney",
    "standardUtcOffset": "+10:00",
    "daylightUtcOffset": "+11:00",
    "referenceCity": "Sydney"
  },
  "currentDifferenceMinutes": 840,
  "possibleDifferencesMinutes": [
    780,
    840,
    900
  ],
  "note": "Between the regions that use these zones the difference is 13, 14 and 15 hours across the year, depending on daylight saving on each side. The clocks on this page show the named zones themselves, which are fixed."
}

Frequently asked questions

What is the time difference between ADT and Sydney?

ADT is currently 14 hours behind Sydney. ADT is on ADT (UTC−3) and Sydney is on AEDT (UTC+11). The difference can change when either side starts or ends daylight saving time.

Is Sydney ahead of or behind ADT?

Sydney is currently 14 hours ahead of ADT.

When it is 9:00 AM in ADT, what time is it in Sydney?

When it is 9:00 AM on a Sunday in ADT, it is 11:00 PM in Sydney.

Do ADT and Sydney observe daylight saving time?

ADT is the daylight-saving counterpart of AST (UTC−4). Clocks in Sydney move back 1 hour to AEST (UTC+10) on Sunday, April 4, 2027.

How do I convert ADT time to Sydney time?

Add 14 hours to any time in ADT to get the time in Sydney. This page's converter and 24-hour table do it automatically and stay correct through daylight-saving changes.

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