What's the current time difference between Hanoi and HKT?

Right now, HKT (HKT · Hong Kong Time) is +1h relative to Hanoi (Hanoi). 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 Hanoi hour lands on a different calendar day in HKT, we flag it so you don't accidentally schedule a meeting on the wrong date. Hanoi 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 Hanoi and HKT 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.

Hanoi to HKT

Hanoi ↔ HKT · Hong Kong Time. Right now, HKT is +1h relative to Hanoi. DST is honored live.

From

Hanoi

—

HKT

—

00:00Hanoi hour of day23:30

Live offset

+1h

Hanoi (May 24) ↔ HKT (May 24)

If Hanoi or HKT just shifted for daylight saving, that's already reflected.

Best meeting overlap

9:00 AM – 3:00 PM

Hanoi time. Equivalent HKT: 10:00 AM – 4:00 PM

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

Hour-by-hour

Hanoi → HKT, every hour

Hanoi · May 24HKT · May 24

12:00 AM1:00 AM
1:00 AM2:00 AM
2:00 AM3:00 AM
3:00 AM4:00 AM
4:00 AM5:00 AM
5:00 AM6:00 AM
6:00 AM7:00 AM
7:00 AM8:00 AM
8:00 AM9:00 AM
9:00 AM10:00 AM
10:00 AM11:00 AM
11:00 AM12:00 PM
12:00 PM1:00 PM
1:00 PM2:00 PM
2:00 PM3:00 PM
3:00 PM4:00 PM
4:00 PM5:00 PM
5:00 PM6:00 PM
6:00 PM7:00 PM
7:00 PM8:00 PM
8:00 PM9:00 PM
9:00 PM10:00 PM
10:00 PM11:00 PM
11:00 PM+1d12:00 AM

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

FAQ

Hanoi ↔ HKT, questions answered

What's the current time difference between Hanoi and HKT?: Right now, HKT (HKT · Hong Kong Time) is +1h relative to Hanoi (Hanoi). 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 Hanoi hour lands on a different calendar day in HKT, we flag it so you don't accidentally schedule a meeting on the wrong date. Hanoi 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 Hanoi and HKT 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 — HKT to Hanoi Time in Hanoi Open in planner