The short answer

Setagaya is 8 hours ahead of Irish Standard Time.

Setagaya
6:01:36am
JST · UTC+09:00 · Thu, Jun 25
Irish Standard Time
10:01:36pm
IST · UTC+01:00 · Wed, Jun 24
Read across to convert
Setagaya
JST · UTC+09:00
6:01am ☀
Irish Standard Time
IST · UTC+01:00
10:01pm ☾
Click any row to pin that hour across both zones.
12amThu
4pmWed ·−1d
WORK
1am
5pmWed ·−1d
2am
6pmWed ·−1d
3am
7pmWed ·−1d
4am
8pmWed ·−1d
5am
9pmWed ·−1d
NOW
6am
10pmWed ·−1d
7am
11pmWed ·−1d
8am
12amThu
9am
WORK
1am
10am
WORK
2am
11am
WORK
3am
12pm
WORK
4am
1pm
WORK
5am
2pm
WORK
6am
3pm
WORK
7am
4pm
WORK
8am
5pm
9am
WORK
6pm
10am
WORK
7pm
11am
WORK
8pm
12pm
WORK
9pm
1pm
WORK
10pm
2pm
WORK
11pm
3pm
WORK
daylightnightworking hoursoverlap
Best time to meet
Closest workable window
Just outside the working window — early on one side, late on the other.
Setagaya
3pm–7pm
=
Irish Standard Time
7am–11am
Popular conversions

Quick reference.

9amSetagaya=1amIrish Standard Time
12pmSetagaya=4amIrish Standard Time
3pmSetagaya=7amIrish Standard Time
5pmSetagaya=9amIrish Standard Time
9pmSetagaya=1pmIrish Standard Time
In context

What each side covers.

Setagaya
JST · UTC+09:00
6:01am
Cities on this clock
Irish Standard Time
IST · UTC+01:00
10:01pm
Cities on this clock

Frequently asked

Quick answers about converting between Setagaya and Irish Standard Time. Can't find what you need? Email [email protected].

What is the time difference between Setagaya and Irish Standard Time?
Setagaya is 8 hours ahead of Irish Standard Time right now. We always show the live, daylight-saving-correct difference, so this figure already accounts for whichever side is observing summer time today.
When it's 9am in Setagaya, what time is it in Irish Standard Time?
9am in Setagaya is 1am in Irish Standard Time. Use the hour-by-hour table above to read any other time across — find the row and read the matching cell in the other column.
What's the best time for a call between Setagaya and Irish Standard Time?
There's no comfortable 9-to-5 overlap between Setagaya and Irish Standard Time — they sit on opposite sides of the planet's working day. Plan for an early or late call on one side, or hand work off asynchronously.
Does this account for daylight saving time?
Yes. We track every clock change in both places, so the abbreviations you see — JST and IST — are the ones actually in effect right now, not a fixed all-year value. When either side changes its clocks, this page updates automatically.
Why is the date sometimes different on each side?
When two places are far enough apart, the same moment can fall on different calendar days. That is why some conversions are marked "previous day" or "next day" — it is the same instant in time, read off two clocks that crossed midnight at different points.