City comparison · time difference and converter
Washington DC is 13 hours behind Tokyo right now. Tokyo sits in Japan on Tokyo; Washington DC sits in United States on New York. They are roughly 10,906 km apart (6,777 mi), a flight of about 13h 50m. Tokyo's metro holds around 37.4 million people; Washington DC's around 6.3 million.
Slot 1
00:00 / 11:00
Tokyo / Washington DC
Partial overlapSlot 2
01:00 / 12:00
Tokyo / Washington DC
Partial overlapSlot 3
02:00 / 13:00
Tokyo / Washington DC
Partial overlapEach row is one hour in Tokyo. Green rows are inside business hours in both cities; amber means only one side is at their desk; grey rows fall outside business hours in both.
Juneteenth
Washington DC, United States
Fri, Jun 19
Great-circle distance
10,906 km
(6,777 mi)
Approximate flight
13h 50m
850 km/h cruise + 1h taxi/climb/descent
Jet lag
13h
Roughly 1 day to adjust per timezone crossed
The heatmap gives you the shape of the day. If you need to convert one specific hour — say a customer call or a release window — open the converter with both cities already loaded.
Open in converter →The difference between Tokyo and Washington DC is not really a number, it's a daily rhythm. Washington DC is 13 hours behind Tokyo on the clock today, but the lived version is that Tokyo is ahead in the calendar, so by the time Washington DC comes online, half of Tokyo's day is already gone. That gap, more than the raw offset, is what teams have to design around.
In Tokyo, the working day picks up earliest in the financial districts — Marunouchi salarymen are in by 08:30 and out around 19:00, often later. The mood in Washington DC is its own story: Washington DC settles into the evening at the usual hour, with the local commuter pattern setting the pace. If you are scheduling between the two, the heatmap above marks the rows where both patterns line up.
Daylight saving is the other thing to keep an eye on. Japan either observes DST or holds a fixed offset year-round; United States shifts on the second Sunday of March and the first Sunday of November. When the two changes are weeks apart, the offset between Tokyo and Washington DC is one hour off the usual for that stretch — a cliff that catches recurring calendar invites unless your calendar app rebases them automatically. Pin the meeting to a city, not an offset, and the tool handles the rest.
For travellers, the 13h 50m flight is the short version of the story. The longer one is jet lag: roughly one day of adjustment per timezone crossed, which means a trip across the 13-hour gap costs about 13 groggy days on each side. Pilots and cabin crew swear by morning sunlight and an early walk; whatever your routine, the wall-clock numbers above are the source of truth for your first morning in the new city.