The short answer

9pm in Hamamatsu is 1pm in Irish Standard Time.

Hamamatsu is 8 hours ahead of Irish Standard Time. It falls outside the 9-to-5 in Hamamatsu but lands inside working hours in Irish Standard Time.

Hamamatsu
9pm
Irish Standard Time
1pm
Right now
2:22amJST · UTC+09:00 · Thu, Jun 25
6:22pmIST · UTC+01:00 · Wed, Jun 24
Read across to convert
Hamamatsu
JST · UTC+09:00
2:22am ☾
Irish Standard Time
IST · UTC+01:00
6:22pm ☾
Pinned9pmHamamatsu=1pmIrish Standard Time
12amThu
4pmWed ·−1d
WORK
1am
5pmWed ·−1d
NOW
2am
6pmWed ·−1d
3am
7pmWed ·−1d
4am
8pmWed ·−1d
5am
9pmWed ·−1d
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
PINNED
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.
Hamamatsu
3pm–7pm
=
Irish Standard Time
7am–11am
Popular conversions

Quick reference.

9amHamamatsu=1amIrish Standard Time
12pmHamamatsu=4amIrish Standard Time
3pmHamamatsu=7amIrish Standard Time
5pmHamamatsu=9amIrish Standard Time
9pmHamamatsu=1pmIrish Standard Time
In context

What each side covers.

Hamamatsu
JST · UTC+09:00
2:22am
Cities on this clock
Irish Standard Time
IST · UTC+01:00
6:22pm
Cities on this clock

Frequently asked

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

What is the time difference between Hamamatsu and Irish Standard Time?
Hamamatsu 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 9pm in Hamamatsu, what time is it in Irish Standard Time?
9pm in Hamamatsu is 1pm in Irish Standard Time. It falls outside the 9-to-5 in Hamamatsu but lands inside working hours in Irish Standard Time. Use the hour-by-hour table above to read any other time across.
What's the best time for a call between Hamamatsu and Irish Standard Time?
There's no comfortable 9-to-5 overlap between Hamamatsu 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.