The short answer

8am in Atlantic Standard Time is 6am in Central Time.

Atlantic Standard Time is 2 hours ahead of Central Time. That's early morning in Central Time, before the typical working day begins.

Atlantic Standard Time
8am
Central Time
6am
Right now
5:54amADT · UTC-03:00 · Mon, Jun 22
3:54amCDT · UTC-05:00 · Mon, Jun 22
Read across to convert
Atlantic Standard Time
ADT · UTC-03:00
5:54am ☾
Central Time
CDT · UTC-05:00
3:54am ☾
Pinned8amAtlantic Standard Time=6amCentral Time
12amMon
10pmSun ·−1d
1am
11pmSun ·−1d
2am
12amMon
3am
1am
4am
2am
NOW
5am
3am
6am
4am
7am
5am
PINNED
8am
6am
9am
WORK
7am
10am
WORK
8am
11am
WORK
9am
WORK
12pm
WORK
10am
WORK
1pm
WORK
11am
WORK
2pm
WORK
12pm
WORK
3pm
WORK
1pm
WORK
4pm
WORK
2pm
WORK
5pm
3pm
WORK
6pm
4pm
WORK
7pm
5pm
8pm
6pm
9pm
7pm
10pm
8pm
11pm
9pm
daylightnightworking hoursoverlap
Best time to meet
Best for a call
Atlantic Standard Time
11am–5pm
=
Central Time
9am–3pm
Popular conversions

Quick reference.

9amAtlantic Standard Time=7amCentral Time
12pmAtlantic Standard Time=10amCentral Time
3pmAtlantic Standard Time=1pmCentral Time
5pmAtlantic Standard Time=3pmCentral Time
9pmAtlantic Standard Time=7pmCentral Time
In context

What each side covers.

Atlantic Standard Time
ADT · UTC-03:00
5:54am

Canada & Caribbean

Central Time
CDT · UTC-05:00
3:54am
Cities on this clock
Did you mean…? “CDT” is shared by several places. This page shows Central Time (US & Canada) — or switch to China Time.

Frequently asked

Quick answers about converting between Atlantic Standard Time and Central Time. Can't find what you need? Email [email protected].

What is the time difference between Atlantic Standard Time and Central Time?
Atlantic Standard Time is 2 hours ahead of Central Time right now. We always show the live, daylight-saving-correct difference, so this figure already accounts for whichever side is observing summer time today.
When it's 8am in Atlantic Standard Time, what time is it in Central Time?
8am in Atlantic Standard Time is 6am in Central Time. That's early morning in Central Time, before the typical working day begins. Use the hour-by-hour table above to read any other time across.
What's the best time for a call between Atlantic Standard Time and Central Time?
11am–5pm in Atlantic Standard Time lines up with 9am–3pm in Central Time — both sides are inside a 9-to-5 working day.
Does this account for daylight saving time?
Yes. We track every clock change in both places, so the abbreviations you see — ADT and CDT — are the ones actually in effect right now, not a fixed all-year value. When either side changes its clocks, this page updates automatically.
Why is the date sometimes different on each side?
When two places are far enough apart, the same moment can fall on different calendar days. That is why some conversions are marked "previous day" or "next day" — it is the same instant in time, read off two clocks that crossed midnight at different points.