What is the time difference between Tokyo and Dublin?

Dublin is 8 hours behind Tokyo. That figure is current — it changes by an hour when either city starts or ends daylight saving, and the exact dates are listed above.

When is the best time to call Dublin from Tokyo?

Between 17:00–18:00 in Tokyo, which is 09:00–10:00 in Dublin. That is the only stretch where both cities are inside a 09:00–18:00 day.

Does Tokyo observe daylight saving time?

No. Tokyo stays on UTC+9 all year, so its clocks never move.

Does Dublin observe daylight saving time?

Yes. Dublin runs on UTC+0 in winter and UTC+1 in summer. The next change is on 2026-10-25, when clocks go back by 60 minutes.

If it is midday in Tokyo, what time is it in Dublin?

It is 04:00 in Dublin, on the same calendar date. That holds for the current offsets; it shifts by an hour around the daylight saving dates listed above.

Which time zones do Tokyo and Dublin use?

Tokyo uses Asia/Tokyo, currently UTC+9, and Dublin uses Europe/Dublin, currently UTC+1 (IST). Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.

Convert Tokyo time to Dublin time

Dublin is 8 hours behind Tokyo right now, so midday in Tokyo lands in the small hours in Dublin.

Convert a time

From

Date

Time

Converted time

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The converter needs JavaScript to run. Everything below — offsets, daylight saving dates and the hour-by-hour table — is part of the page and works without it.

Hour by hour

Every hour of a day in Tokyo, and what the clock reads in Dublin at that same moment.

Tokyo	Dublin
00:00	16:00previous day
01:00	17:00previous day
02:00	18:00previous day
03:00	19:00previous day
04:00	20:00previous day
05:00	21:00previous day
06:00	22:00previous day
07:00	23:00previous day
08:00	00:00
09:00	01:00
10:00	02:00
11:00	03:00
12:00	04:00
13:00	05:00
14:00	06:00
15:00	07:00
16:00	08:00
17:00	09:00
18:00	10:00
19:00	11:00
20:00	12:00
21:00	13:00
22:00	14:00
23:00	15:00

Daylight saving time

Tokyo keeps one offset all year while Dublin moves twice. That is the whole reason this difference is seasonal.

Tokyo

Does not observe daylight saving time

Standard: UTC+9

Dublin

Observes daylight saving time

Standard: UTC+0
Daylight: UTC+1
Next change: 2026-10-25 −60m

When you can actually talk

The window is 1 hour wide — 17:00–18:00 in Tokyo, 09:00–10:00 in Dublin.

Tokyo 17:00–18:00Dublin 09:00–10:00

Reference

The zone identifiers and offsets behind everything above.

	Tokyo	Dublin
IANA zone	Asia/Tokyo	Europe/Dublin
Abbreviation	UTC+9	IST
Standard offset	UTC+9	UTC+0
Daylight offset	—	UTC+1
Clock changes this year	0	2
Country	Japan	Ireland

Example, not the current time. Live times appear once the page loads.

Common questions

What is the time difference between Tokyo and Dublin?: Dublin is 8 hours behind Tokyo. That figure is current — it changes by an hour when either city starts or ends daylight saving, and the exact dates are listed above.
When is the best time to call Dublin from Tokyo?: Between 17:00–18:00 in Tokyo, which is 09:00–10:00 in Dublin. That is the only stretch where both cities are inside a 09:00–18:00 day.
Does Tokyo observe daylight saving time?: No. Tokyo stays on UTC+9 all year, so its clocks never move.
Does Dublin observe daylight saving time?: Yes. Dublin runs on UTC+0 in winter and UTC+1 in summer. The next change is on 2026-10-25, when clocks go back by 60 minutes.
If it is midday in Tokyo, what time is it in Dublin?: It is 04:00 in Dublin, on the same calendar date. That holds for the current offsets; it shifts by an hour around the daylight saving dates listed above.
Which time zones do Tokyo and Dublin use?: Tokyo uses Asia/Tokyo, currently UTC+9, and Dublin uses Europe/Dublin, currently UTC+1 (IST). Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.