TIME ZONE CONVERTER

Tokyo
San Juan

Choose a time. Get the same moment in another city.

Right now18:23Tokyo06:23San Juan

Date-specific time zone rules. Repeated and skipped daylight-saving times are flagged.

San Juan21:00
2026-09-09UTC−03:00

12 hours behind Tokyo.

At the date and time you selected
Count down to this moment

Working-hour overlap

Compare Tokyo and San Juan, assuming Monday–Friday, 09:00–18:00 in each location. Holidays, individual schedules and local business customs are not included. Checked in 15-minute slots.

No overlap under these working-hour assumptions. An earlier or later meeting would require agreement from the participants.

AT A GLANCE

Tokyo San Juan

00:0012:0009-09
01:0013:0009-09
02:0014:0009-09
03:0015:0009-09
04:0016:0009-09
05:0017:0009-09
06:0018:0009-09
07:0019:0009-09
08:0020:0009-09
09:0021:0009-09
10:0022:0009-09
11:0023:0009-09
12:0000:00UTC−03:00
13:0001:00UTC−03:00
14:0002:00UTC−03:00
15:0003:00UTC−03:00
16:0004:00UTC−03:00
17:0005:00UTC−03:00
18:0006:00UTC−03:00
19:0007:00UTC−03:00
20:0008:00UTC−03:00
21:0009:00UTC−03:00
22:0010:00UTC−03:00
23:0011:00UTC−03:00

Shading marks 09:00–17:59 in the starting location. Repeated daylight-saving hours show both results.

Planning between Tokyo and San Juan

Tokyo uses Asia/Tokyo; San Juan uses America/Argentina/San_Juan. Select your event's actual date because time-zone changes can alter the difference. The timetable and overlap above follow the selected locations and date.

The calendar download stores an absolute UTC time for a one-hour event. The shared converter link preserves your selected locations, date, time and occurrence when a clock time repeats.

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