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Time difference between Dublin and Tokyo

Tokyo is 8 hours ahead of Dublin

Dublin, Ireland is UTC · Tokyo, Japan is UTC+9 — 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 Dublin goes forward on the last Sunday in March and back on the last Sunday in October and Tokyo does not change its clocks.

Dublin / Tokyo clocksDifferenceHow long
summer / standard8 hours aheadabout 30 weeks
standard / standard9 hours aheadabout 22 weeks

Tokyo stays put all year while Dublin moves, so a meeting fixed in Tokyo's calendar shifts by an hour twice a year at Dublin's end.

When they can both be at their desks

Nine-to-five in Dublin and nine-to-five in Tokyo 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.

Dublin to Tokyo, hour by hour

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

On the usual gap of 8 hours.

Frequently asked questions

What is the time difference between Dublin and Tokyo?

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

Is Tokyo ahead of Dublin?

Yes — Tokyo is 8 hours ahead. Dublin is UTC and Tokyo is UTC+9 on standard time.

What time is 9 AM in Dublin in Tokyo?

5:00 PM, on the usual gap.

When can Dublin and Tokyo meet?

Nine-to-five in Dublin and nine-to-five in Tokyo 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 Dublin pair · Every Tokyo pair · All city pairs · Time zones by abbreviation