Convert Riyadh time to Tokyo time

Hour by hour

The whole day mapped across: read down the left for Riyadh, across for Tokyo.

Daylight saving time

Neither Riyadh nor Tokyo changes its clocks, so the difference between them is the same every day of the year.

When you can actually talk

The window is 3 hours wide — 09:00–12:00 in Riyadh, 15:00–18:00 in Tokyo.

• Riyadh 09:00–12:00Tokyo 15:00–18:00

Reference

The underlying data, in case you need to put it in a calendar invitation or a configuration file.

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

Common questions

What is the time difference between Riyadh and Tokyo?

Tokyo is 6 hours ahead of Riyadh. 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 Tokyo from Riyadh?

Between 09:00–12:00 in Riyadh, which is 15:00–18:00 in Tokyo. That is the only stretch where both cities are inside a 09:00–18:00 day.

Does Riyadh observe daylight saving time?

No. Riyadh stays on UTC+3 all year, so its clocks never move.

Does Tokyo observe daylight saving time?

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

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

It is 18:00 in Tokyo, on the same calendar date. That holds for the current offsets; it does not change through the year, because neither city moves its clocks.

Which time zones do Riyadh and Tokyo use?

Riyadh uses Asia/Riyadh, currently UTC+3, and Tokyo uses Asia/Tokyo, currently UTC+9. Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.