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

Right now, JST (JST · Japan Standard Time) is +12h relative to Fortaleza (Fortaleza). 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 Fortaleza hour lands on a different calendar day in JST, we flag it so you don't accidentally schedule a meeting on the wrong date. Fortaleza 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 Fortaleza and JST 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.

Fortaleza to JST

Fortaleza ↔ JST · Japan Standard Time. Right now, JST is +12h relative to Fortaleza. DST is honored live.

From

Fortaleza

—

JST

—

00:00Fortaleza hour of day23:30

Live offset

+12h

Fortaleza (May 23) ↔ JST (May 23)

If Fortaleza or JST 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

Fortaleza → JST, every hour

Fortaleza · May 23JST · 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

Fortaleza ↔ JST, questions answered

What's the current time difference between Fortaleza and JST?: Right now, JST (JST · Japan Standard Time) is +12h relative to Fortaleza (Fortaleza). 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 Fortaleza hour lands on a different calendar day in JST, we flag it so you don't accidentally schedule a meeting on the wrong date. Fortaleza 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 Fortaleza and JST 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 — JST to Fortaleza Time in Fortaleza Open in planner