What's the current time difference between JST and Havana?

Right now, Havana (Havana) is −13h relative to JST (JST · Japan Standard Time). 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 JST hour lands on a different calendar day in Havana, we flag it so you don't accidentally schedule a meeting on the wrong date. JST 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 JST and Havana 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.

JST to Havana

JST · Japan Standard Time ↔ Havana. Right now, Havana is −13h relative to JST. DST is honored live.

From

JST

—

Havana

—

00:00JST hour of day23:30

Live offset

−13h

JST (May 24) ↔ Havana (May 23)

If JST or Havana 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

JST → Havana, every hour

JST · May 24Havana · May 23

12:00 AM11:00 AM
1:00 AM12:00 PM
2:00 AM1:00 PM
3:00 AM2:00 PM
4:00 AM3:00 PM
5:00 AM4:00 PM
6:00 AM5:00 PM
7:00 AM6:00 PM
8:00 AM7:00 PM
9:00 AM8:00 PM
10:00 AM9:00 PM
11:00 AM10:00 PM
12:00 PM11:00 PM
1:00 PM+1d12:00 AM
2:00 PM+1d1:00 AM
3:00 PM+1d2:00 AM
4:00 PM+1d3:00 AM
5:00 PM+1d4:00 AM
6:00 PM+1d5:00 AM
7:00 PM+1d6:00 AM
8:00 PM+1d7:00 AM
9:00 PM+1d8:00 AM
10:00 PM+1d9:00 AM
11:00 PM+1d10:00 AM

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

FAQ

JST ↔ Havana, questions answered

What's the current time difference between JST and Havana?: Right now, Havana (Havana) is −13h relative to JST (JST · Japan Standard Time). 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 JST hour lands on a different calendar day in Havana, we flag it so you don't accidentally schedule a meeting on the wrong date. JST 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 JST and Havana 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 — Havana to JST Time in Havana Open in planner