When Tokyo
Gets Dark

Every night-photography question about Tokyo eventually becomes the same question: what time does it actually get dark? Guidebooks do not answer it, and the answer moves by more than two hours across the year. So we calculated it — sunset, the end of blue hour, and the moment the sky is genuinely black — for every day of the year in central Tokyo.

The Short Answer

In central Tokyo the sun sets as early as 16:28 in early December and as late as 19:00 in late June. Blue hour — the usable window after sunset — lasts 25 to 30 minutes, and the sky is fully dark roughly an hour after sunset. For anyone planning an evening around photographs, the useful date is 17 October: from then until 27 January, Tokyo is already in complete darkness by 18:00.

The Three Dates That Matter

If you are choosing between trip dates, these are the thresholds. All are for 2026 and shift by a day or so year to year.

This is why a December booking and a June booking are not the same product. In December the entire evening is night. In June you will watch the sun go down from the passenger seat, which some people prefer — but if the photographs are the point, you are losing the first hour.

Full Table — Central Tokyo

Times are Japan Standard Time. Blue hour ends is the end of civil twilight, when the sun is 6° below the horizon and artificial light starts to dominate. Full darkness is the end of nautical twilight, at 12° below.

Best Departure Time for the 1-Hour Route

The 1-hour ride runs Tokyo Tower, Rainbow Bridge and Odaiba, Shibuya Scramble, then Ginza and the Imperial Palace. To reach the first landmark inside blue hour, leave your hotel about 45 minutes before sunset.

Leaving at that time puts Tokyo Tower in blue hour, Rainbow Bridge just as the bay goes dark, and Shibuya and Ginza under full artificial light — which is when those two actually look their best. If your evening has to start later, nothing is ruined; you simply trade the blue sky for deeper blacks.

What Each Stop Wants

Season, Not Just Time

The clock is only half of it. Winter air over Tokyo Bay is dramatically clearer than summer air, and that shows up in every long-distance frame.

Rain is not the enemy people assume. Wet asphalt doubles every light source in the frame, and a wet Ginza at night is easier to photograph well than a dry one. What genuinely hurts is summer haze, which softens the skyline across the water and cannot be fixed afterwards.

How These Numbers Were Produced

Calculated with the NOAA solar position algorithm for 35.66°N, 139.75°E — central Tokyo, near Tokyo Tower — in Japan Standard Time, which has no daylight saving. Sunset uses the standard −0.833° solar elevation, which accounts for atmospheric refraction and the radius of the solar disc. Blue hour ends at civil twilight (−6°) and full darkness at nautical twilight (−12°).

We checked the output against published sunset times for Tokyo and it agrees to within about two minutes, which is well inside the margin that matters for planning. Figures are for 2026; they move by roughly a day either side in other years. Tall buildings will take the sun several minutes earlier than the horizon does, so treat these as the outer limit of the light rather than a guarantee.

Frequently Asked Questions

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