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Time difference between Tokyo and Dublin

Dublin is 8 hours behind Tokyo

Tokyo, Japan is UTC+9 · Dublin, Ireland is UTC — on standard time

The gap is not the same all year

Every converter gives one number for this pair. That number is right for most of the year and wrong for part of it, because Tokyo does not change its clocks and Dublin goes forward on the last Sunday in March and back on the last Sunday in October.

Tokyo / Dublin clocksDifferenceHow long
standard / summer8 hours behindabout 30 weeks
standard / standard9 hours behindabout 22 weeks

Tokyo stays put all year while Dublin moves, so the gap changes twice a year from Dublin's side alone. A recurring meeting set in Tokyo's calendar will drift by an hour without anyone touching it.

When they can both be at their desks

Nine-to-five in Tokyo and nine-to-five in Dublin do not overlap at all. With 8 hours between them, one side is always outside working hours, and the practical question is which side takes the early start or the late finish rather than when to meet.

Tokyo to Dublin, hour by hour

TokyoDublin
12:00 AM4:00 PM (previous day)
1:00 AM5:00 PM (previous day)
2:00 AM6:00 PM (previous day)
3:00 AM7:00 PM (previous day)
4:00 AM8:00 PM (previous day)
5:00 AM9:00 PM (previous day)
6:00 AM10:00 PM (previous day)
7:00 AM11:00 PM (previous day)
8:00 AM12:00 AM
9:00 AM1:00 AM
10:00 AM2:00 AM
11:00 AM3:00 AM
12:00 PM4:00 AM
1:00 PM5:00 AM
2:00 PM6:00 AM
3:00 PM7:00 AM
4:00 PM8:00 AM
5:00 PM9:00 AM
6:00 PM10:00 AM
7:00 PM11:00 AM
8:00 PM12:00 PM
9:00 PM1:00 PM
10:00 PM2:00 PM
11:00 PM3:00 PM

On the usual gap of 8 hours.

Frequently asked questions

What is the time difference between Tokyo and Dublin?

Dublin is 8 hours behind Tokyo for most of the year. It is not the same all year — there is one other gap, because Tokyo does not change its clocks and Dublin goes forward on the last Sunday in March and back on the last Sunday in October.

Is Dublin ahead of Tokyo?

No — Dublin is 8 hours behind. Tokyo is UTC+9 and Dublin is UTC on standard time.

What time is 9 AM in Tokyo in Dublin?

1:00 AM, on the usual gap.

When can Tokyo and Dublin meet?

Nine-to-five in Tokyo and nine-to-five in Dublin do not overlap at all. One side has to take the call outside working hours, and with 8 hours between them it is worth deciding in advance which side that is.

Other pairs

Every Tokyo pair · Every Dublin pair · All city pairs · Time zones by abbreviation