What's the current time difference between Busan and IST?

Right now, IST (IST · India Standard Time) is −3.5h relative to Busan (Busan). 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 Busan hour lands on a different calendar day in IST, we flag it so you don't accidentally schedule a meeting on the wrong date. Busan 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 Busan and IST 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.

Busan to IST

Busan ↔ IST · India Standard Time. Right now, IST is −3.5h relative to Busan. DST is honored live.

From

Busan

—

IST

—

00:00Busan hour of day23:30

Live offset

−3.5h

Busan (May 24) ↔ IST (May 23)

If Busan or IST just shifted for daylight saving, that's already reflected.

Best meeting overlap

1:00 PM – 4:00 PM

Busan time. Equivalent IST: 9:30 AM – 12:30 PM

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

Hour-by-hour

Busan → IST, every hour

Busan · May 24IST · May 23

12:00 AM8:30 PM
1:00 AM9:30 PM
2:00 AM10:30 PM
3:00 AM11:30 PM
4:00 AM+1d12:30 AM
5:00 AM+1d1:30 AM
6:00 AM+1d2:30 AM
7:00 AM+1d3:30 AM
8:00 AM+1d4:30 AM
9:00 AM+1d5:30 AM
10:00 AM+1d6:30 AM
11:00 AM+1d7:30 AM
12:00 PM+1d8:30 AM
1:00 PM+1d9:30 AM
2:00 PM+1d10:30 AM
3:00 PM+1d11:30 AM
4:00 PM+1d12:30 PM
5:00 PM+1d1:30 PM
6:00 PM+1d2:30 PM
7:00 PM+1d3:30 PM
8:00 PM+1d4:30 PM
9:00 PM+1d5:30 PM
10:00 PM+1d6:30 PM
11:00 PM+1d7:30 PM

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

FAQ

Busan ↔ IST, questions answered

What's the current time difference between Busan and IST?: Right now, IST (IST · India Standard Time) is −3.5h relative to Busan (Busan). 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 Busan hour lands on a different calendar day in IST, we flag it so you don't accidentally schedule a meeting on the wrong date. Busan 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 Busan and IST 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 — IST to Busan Time in Busan Open in planner