Beijing, and all of China, uses a single time zone (China Standard Time, UTC+8) with no daylight saving despite the country's wide geographic span. It's a common anchor for scheduling between East Asia and the rest of the world.
FROM
04:00
Wed, Oct 28
UTC+8
TO
ADJUST
New York
USA · UTC−4
16:00
Tue, Oct 27
business hours
−12hclocks ↓ in 5d
London
UK · UTC+0
20:00
Tue, Oct 27
evening
−8h🌙
Tokyo
Japan · UTC+9
05:00
Wed, Oct 28
likely asleep
+1h🌙
Sydney
Australia · UTC+11
07:00
Wed, Oct 28
early morning
+3h☀️
OVERLAP TIMELINE09:00–18:00 · Beijing time
Beijing
New York
London
Tokyo
Sydney
OVERLAP
No working-hours overlap today between Beijing and New York