The short answer

1am in Beijing is 2pm in Atlantic Standard Time on the previous day.

Beijing is 11 hours ahead of Atlantic Standard Time. It falls outside the 9-to-5 in Beijing but lands inside working hours in Atlantic Standard Time.

Beijing
1am
Atlantic Standard Time
2pm
previous day
Right now
3:49pmCST · UTC+08:00 · Mon, Jun 22
4:49amADT · UTC-03:00 · Mon, Jun 22
Read across to convert
Beijing
CST · UTC+08:00
3:49pm ☀
Atlantic Standard Time
ADT · UTC-03:00
4:49am ☾
Pinned1amBeijing=2pmAtlantic Standard Time · Sun (previous day)
12amMon
1pmSun ·−1d
WORK
PINNED
1am
2pmSun ·−1d
WORK
2am
3pmSun ·−1d
WORK
3am
4pmSun ·−1d
WORK
4am
5pmSun ·−1d
5am
6pmSun ·−1d
6am
7pmSun ·−1d
7am
8pmSun ·−1d
8am
9pmSun ·−1d
9am
WORK
10pmSun ·−1d
10am
WORK
11pmSun ·−1d
11am
WORK
12amMon
12pm
WORK
1am
1pm
WORK
2am
2pm
WORK
3am
NOW
3pm
WORK
4am
4pm
WORK
5am
5pm
6am
6pm
7am
7pm
8am
8pm
9am
WORK
9pm
10am
WORK
10pm
11am
WORK
11pm
12pm
WORK
daylightnightworking hoursoverlap
Best time to meet
Closest workable window
Just outside the working window — early on one side, late on the other.
Beijing
6pm–7pm
=
Atlantic Standard Time
7am–8am
Popular conversions

Quick reference.

9amBeijing=10pmAtlantic Standard Time · prev day
12pmBeijing=1amAtlantic Standard Time
3pmBeijing=4amAtlantic Standard Time
5pmBeijing=6amAtlantic Standard Time
9pmBeijing=10amAtlantic Standard Time
In context

What each side covers.

Beijing
CST · UTC+08:00
3:49pm
Cities on this clock
Atlantic Standard Time
ADT · UTC-03:00
4:49am

Canada & Caribbean

Frequently asked

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

What is the time difference between Beijing and Atlantic Standard Time?
Beijing is 11 hours ahead of Atlantic Standard 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 1am in Beijing, what time is it in Atlantic Standard Time?
1am in Beijing is 2pm in Atlantic Standard Time on the previous day. It falls outside the 9-to-5 in Beijing but lands inside working hours in Atlantic Standard Time. Use the hour-by-hour table above to read any other time across.
What's the best time for a call between Beijing and Atlantic Standard Time?
There's no comfortable 9-to-5 overlap between Beijing and Atlantic Standard Time — they sit on opposite sides of the planet's working day. Plan for an early or late call on one side, or hand work off asynchronously.
Does this account for daylight saving time?
Yes. We track every clock change in both places, so the abbreviations you see — CST and ADT — 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.