What's the current time difference between Rio de Janeiro and KST?

Right now, KST (KST · Korea Standard Time) is +12h relative to Rio de Janeiro (Rio de Janeiro). The number is live and reflects the current daylight-saving status of both zones.

Does this converter account for daylight saving time?

Yes. The math is done against IANA's tz database via Intl.DateTimeFormat, so DST shifts in either zone show up immediately at the transition. Around DST boundaries the conversion can move by an hour from one week to the next — this page always reflects the current rule.

Why does the TO column sometimes show "+1d" or "−1d"?

When the Rio de Janeiro hour lands on a different calendar day in KST, we flag it so you don't accidentally schedule a meeting on the wrong date. Rio de Janeiro 11 PM is often the next day in eastern-hemisphere zones, for example.

How do I schedule a meeting that works for both zones?

Look at the row highlighted lume green — that's the longest contiguous block where both Rio de Janeiro and KST are in standard working hours (9 AM–5 PM local). Open the planner from the link above to lock a specific time and share a DST-stable link with the other party.

Rio de Janeiro to KST

Rio de Janeiro ↔ KST · Korea Standard Time. Right now, KST is +12h relative to Rio de Janeiro. DST is honored live.

From

Rio de Janeiro

—

KST

—

00:00Rio de Janeiro hour of day23:30

Live offset

+12h

Rio de Janeiro (May 23) ↔ KST (May 23)

If Rio de Janeiro or KST just shifted for daylight saving, that's already reflected.

Best meeting overlap

No 9-to-5 overlap.

Working hours = 9 AM – 5 PM in each zone.

Hour-by-hour

Rio de Janeiro → KST, every hour

Rio de Janeiro · May 23KST · May 23

12:00 AM12:00 PM
1:00 AM1:00 PM
2:00 AM2:00 PM
3:00 AM3:00 PM
4:00 AM4:00 PM
5:00 AM5:00 PM
6:00 AM6:00 PM
7:00 AM7:00 PM
8:00 AM8:00 PM
9:00 AM9:00 PM
10:00 AM10:00 PM
11:00 AM11:00 PM
12:00 PM+1d12:00 AM
1:00 PM+1d1:00 AM
2:00 PM+1d2:00 AM
3:00 PM+1d3:00 AM
4:00 PM+1d4:00 AM
5:00 PM+1d5:00 AM
6:00 PM+1d6:00 AM
7:00 PM+1d7:00 AM
8:00 PM+1d8:00 AM
9:00 PM+1d9:00 AM
10:00 PM+1d10:00 AM
11:00 PM+1d11:00 AM

Both zones in working hours±1d = the TO side lands on a different calendar day

FAQ

Rio de Janeiro ↔ KST, questions answered

What's the current time difference between Rio de Janeiro and KST?: Right now, KST (KST · Korea Standard Time) is +12h relative to Rio de Janeiro (Rio de Janeiro). The number is live and reflects the current daylight-saving status of both zones.
Does this converter account for daylight saving time?: Yes. The math is done against IANA's tz database via Intl.DateTimeFormat, so DST shifts in either zone show up immediately at the transition. Around DST boundaries the conversion can move by an hour from one week to the next — this page always reflects the current rule.
Why does the TO column sometimes show "+1d" or "−1d"?: When the Rio de Janeiro hour lands on a different calendar day in KST, we flag it so you don't accidentally schedule a meeting on the wrong date. Rio de Janeiro 11 PM is often the next day in eastern-hemisphere zones, for example.
How do I schedule a meeting that works for both zones?: Look at the row highlighted lume green — that's the longest contiguous block where both Rio de Janeiro and KST are in standard working hours (9 AM–5 PM local). Open the planner from the link above to lock a specific time and share a DST-stable link with the other party.

Reverse — KST to Rio de Janeiro Time in Rio de Janeiro Open in planner