Time difference between Naperville and Tokyo
Tokyo is 14 hours ahead of Naperville.
Local time in both cities
Naperville · United States
18:52
Tokyo · Japan
08:52
Tokyo is 14 hours ahead of Naperville.
already the next day
Time zones
| Naperville | America/Chicago · UTC-05:00 |
|---|---|
| Tokyo | Asia/Tokyo · UTC+09:00 |
Naperville is currently on daylight saving time (UTC-05:00). Next change: 2026-11-01 01:00.
Tokyo does not observe daylight saving and stays on UTC+09:00 all year.
Hour-by-hour conversion
Calculated for 2026-09-20 local time in Naperville. The two places start and end daylight saving on different dates, so another day can give a different result.
| Naperville (source) | Tokyo (target) |
|---|---|
| 00:00 | 14:00 |
| 01:00 | 15:00 |
| 02:00 | 16:00 |
| 03:00 | 17:00 |
| 04:00 | 18:00 |
| 05:00 | 19:00 |
| 06:00 | 20:00 |
| 07:00 | 21:00 |
| 08:00 | 22:00 |
| 09:00 | 23:00 |
| 10:00 | 00:00 next day |
| 11:00 | 01:00 next day |
| 12:00 | 02:00 next day |
| 13:00 | 03:00 next day |
| 14:00 | 04:00 next day |
| 15:00 | 05:00 next day |
| 16:00 | 06:00 next day |
| 17:00 | 07:00 next day |
| 18:00 | 08:00 next day |
| 19:00 | 09:00 next day |
| 20:00 | 10:00 next day |
| 21:00 | 11:00 next day |
| 22:00 | 12:00 next day |
| 23:00 | 13:00 next day |
Other common differences from Naperville
FAQ
- How many hours apart are Naperville and Tokyo right now?
- The answer at the top of the page is calculated for the current moment and states which side is ahead. The gap changes during the year, because the two places usually start and end daylight saving on different dates.
- Is this difference the same all year?
- Not necessarily. Naperville uses America/Chicago and Tokyo uses Asia/Tokyo; if either observes daylight saving, the gap shifts during the year. Use “Convert a specific date and time” below to calculate it for a given day.
- How do I read the conversion table?
- The left column lists each whole hour in Naperville; the right column is the local time in Tokyo at that same instant, with date rollovers marked. On the day clocks jump forward, some hours do not exist locally — the table says so instead of showing a plausible but wrong value.