Tokyo to Rathfarnham time converter

Rathfarnham is 8 hours behind Tokyo. When it is 9:00 AM in Tokyo, it is 1:00 AM in Rathfarnham.

Tokyo JST

Monday, October 19, 2026

Rathfarnham IST

Monday, October 19, 2026

Tokyo
Japan
Mon, Oct 19
JSTUTC+9
Rathfarnham
Ireland
Mon, Oct 19
ISTUTC+1-8h
Finding your time zone…
Shared working hours (9:00–18:00)

Tokyo to Rathfarnham conversion table

Every hour of today in Tokyo and the matching time in Rathfarnham. Light rows are typical working hours (9:00–18:00).

TokyoRathfarnham
12:00 AM4:00 PM−1 day
1:00 AM5:00 PM−1 day
2:00 AM6:00 PM−1 day
3:00 AM7:00 PM−1 day
4:00 AM8:00 PM−1 day
5:00 AM9:00 PM−1 day
6:00 AM10:00 PM−1 day
7:00 AM11:00 PM−1 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

Best time to call or meet

Both sides are at work from 5:00 PM – 6:00 PM in Tokyo (9:00 AM – 10:00 AM in Rathfarnham).

Daylight saving time and the difference

The difference changes during the year because Tokyo and Rathfarnham switch clocks on different dates:

  • Oct 19, 2026 – Oct 25, 2026: -8h
  • Oct 25, 2026 – Mar 28, 2027: -9h
  • Mar 28, 2027 – Oct 19, 2027: -8h

Distance

Tokyo and Rathfarnham are 9,590 km (5,959 miles) apart in a straight line.

More conversions

Rathfarnham to TokyoTokyo to New YorkTokyo to LondonTokyo to Los AngelesTokyo to ChicagoTokyo to TorontoTokyo to São PauloTokyo to ParisTokyo to BerlinTokyo to MoscowTokyo to DubaiTokyo to New DelhiTokyo to Bangkok
New York to RathfarnhamLondon to RathfarnhamLos Angeles to RathfarnhamChicago to RathfarnhamToronto to RathfarnhamSão Paulo to RathfarnhamParis to RathfarnhamBerlin to RathfarnhamMoscow to RathfarnhamDubai to RathfarnhamNew Delhi to RathfarnhamBangkok to Rathfarnham

Questions and answers

What is the time difference between Tokyo and Rathfarnham?

Rathfarnham is 8 hours behind Tokyo.

What time is it in Rathfarnham when it is 9 AM in Tokyo?

When it is 9:00 AM in Tokyo, it is 1:00 AM in Rathfarnham.

When is the best time to call Rathfarnham from Tokyo?

Both sides are at work from 5:00 PM – 6:00 PM in Tokyo (9:00 AM – 10:00 AM in Rathfarnham).

Does the time difference between Tokyo and Rathfarnham change?

Yes, for part of the year, because daylight saving time starts and ends on different dates or applies on one side only.