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AEST to AST Converter

AST is 14 hours behind AEST. This converter turns any Australian Eastern Standard Time (AEST) time into Atlantic Standard Time (AST) — just click the time or date to change it.

ADT is 13 hours behind AEST−1 day
From
AEST

Now in Sydney: 3:54:05 AM AEST

To
−1 day
ADT

Now in Halifax: 2:54:05 PM ADT

On this date Halifax observes ADT. AST is in effect during standard-time (non-summer) months.

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Daylight saving notes

In southern Australia, daylight saving time runs from the first Sunday in October to the first Sunday in April. That affects Australian Eastern Standard Time (AEST).

In the United States and Canada, daylight saving time runs from the second Sunday in March to the first Sunday in November. That affects Atlantic Standard Time (AST).

AEST to AST conversion chart

For example, a 9:00 AM AEST meeting takes place at 7:00 PM AST (−1 day). Concretely, when Sydney (AEST) and Halifax (AST) set up a call, aST is 14 hours behind AEST.

Australian Eastern Standard Time to Atlantic Standard Time conversion chart
AEST timeAST time
12:00 AM10:00 AM−1 day
1:00 AM11:00 AM−1 day
2:00 AM12:00 PM−1 day
3:00 AM1:00 PM−1 day
4:00 AM2:00 PM−1 day
5:00 AM3:00 PM−1 day
6:00 AM4:00 PM−1 day
7:00 AM5:00 PM−1 day
8:00 AM6:00 PM−1 day
9:00 AM7:00 PM−1 day
10:00 AM8:00 PM−1 day
11:00 AM9:00 PM−1 day
12:00 PM10:00 PM−1 day
1:00 PM11:00 PM−1 day
2:00 PM12:00 AM
3:00 PM1:00 AM
4:00 PM2:00 AM
5:00 PM3:00 AM
6:00 PM4:00 AM
7:00 PM5:00 AM
8:00 PM6:00 AM
9:00 PM7:00 AM
10:00 PM8:00 AM
11:00 PM9:00 AM

This chart uses the fixed AEST and AST offsets; the live converter above follows current daylight saving.

Convert AEST to AST Time Zone

Everything you need for AEST to AST — the difference, the current times, and how to plan around it.

Converting AEST to AST, step by step

It takes three quick steps:

  1. Click the AEST field on the left and pick the time you want to convert.
  2. The matching AST time updates on the right automatically — there’s no button to press.
  3. Need a different day? Click the date field and the result follows, rolling over if it crosses midnight.

AEST vs AST: what's the time gap?

AST is 14 hours behind AEST. In everyday terms, once you know the time on one side you just subtract 14 hours to get the other — so a call between Sydney and Halifax is always 14 hours apart.

What time is it in AST right now?

Right now the time in Atlantic Standard Time (AST) is Monday, June 29, 2026 · 1:54:05 PM. It ticks every second, so you’re always looking at the live AST clock.

What time is it in AEST right now?

And in Australian Eastern Standard Time (AEST), it’s currently Tuesday, June 30, 2026 · 3:54:05 AM. Compare the two and the 14 hours gap is easy to see.

What's the best time for a AEST–AST call?

For example, a 9:00 AM AEST meeting takes place at 7:00 PM AST (−1 day). The trick is to aim for a slot that lands inside normal working hours on both sides. Once you’ve found a time, hit Share on the converter to copy a link with the time built in — easy to send to a colleague. Juggling three or more zones? The meeting planner highlights the hours that overlap for everyone.

How does daylight saving affect AEST to AST?

The labels AEST and AST are fixed offsets, so the result on this page is always exact. Both regions move their clocks for daylight saving on roughly the same weekends, so the 14 hours gap usually holds steady right through the year.

Why can you trust this AEST to AST converter?

Every conversion here is calculated from the IANA time zone database — the same source your phone, computer, and browser rely on. Plenty of tools hard-code a single offset, which quietly goes wrong whenever a region changes its rules or flips for daylight saving. We follow the real rules instead, so AEST to AST stays accurate for today and for any past or future date you type in.

Convert AEST to other time zones

Convert to AST from other time zones

Frequently asked questions

How many hours behind AEST is AST?

AST is 14 hours behind AEST — a fixed 14 hours difference, since both are fixed-offset labels.

What time is it in AST when it's 12:00 PM AEST?

When it's 12:00 PM (noon) AEST, it's 10:00 PM AST the previous day.

Do AEST or AST use daylight saving time?

Australian Eastern Standard Time (AEST) observes daylight saving, alternating with AEDT; Atlantic Standard Time (AST) observes daylight saving, alternating with ADT.

Why might the real-world AEST–AST difference change during the year?

The labels AEST and AST are fixed offsets, so this converter is always exact. But Australian Eastern Standard Time's region switches between standard and summer time, so for part of the year you may actually want AEDT to AST. Always check which label a region is currently using before you schedule.