Tokyo to Alton time converter
Alton is 8 hours behind Tokyo. When it is 9:00 AM in Tokyo, it is 1:00 AM in Alton.
9:15 PM in Tokyo, Tuesday, October 20, 2026
Tokyo to Alton conversion table
Every hour of today in Tokyo and the matching time in Alton. Light rows are typical working hours (9:00–18:00).
| Tokyo | Alton |
|---|---|
| 12:00 AM | 4:00 PM−1 day |
| 1:00 AM | 5:00 PM−1 day |
| 2:00 AM | 6:00 PM−1 day |
| 3:00 AM | 7:00 PM−1 day |
| 4:00 AM | 8:00 PM−1 day |
| 5:00 AM | 9:00 PM−1 day |
| 6:00 AM | 10:00 PM−1 day |
| 7:00 AM | 11:00 PM−1 day |
| 8:00 AM | 12:00 AM |
| 9:00 AM | 1:00 AM |
| 10:00 AM | 2:00 AM |
| 11:00 AM | 3:00 AM |
| 12:00 PM | 4:00 AM |
| 1:00 PM | 5:00 AM |
| 2:00 PM | 6:00 AM |
| 3:00 PM | 7:00 AM |
| 4:00 PM | 8:00 AM |
| 5:00 PM | 9:00 AM |
| 6:00 PM | 10:00 AM |
| 7:00 PM | 11:00 AM |
| 8:00 PM | 12:00 PM |
| 9:00 PM | 1:00 PM |
| 10:00 PM | 2:00 PM |
| 11:00 PM | 3:00 PM |
Best time to call or meet
Both sides are at work from 5:00 PM – 6:00 PM in Tokyo (9:00 AM – 10:00 AM in Alton).
Daylight saving time and the difference
The difference changes during the year because Tokyo and Alton switch clocks on different dates:
- Oct 20, 2026 – Oct 25, 2026: -8h
- Oct 25, 2026 – Mar 28, 2027: -9h
- Mar 28, 2027 – Oct 20, 2027: -8h
Distance
Tokyo and Alton are 9,623 km (5,979 miles) apart in a straight line.
More conversions
Questions and answers
What is the time difference between Tokyo and Alton?
Alton is 8 hours behind Tokyo.
What time is it in Alton when it is 9 AM in Tokyo?
When it is 9:00 AM in Tokyo, it is 1:00 AM in Alton.
When is the best time to call Alton from Tokyo?
Both sides are at work from 5:00 PM – 6:00 PM in Tokyo (9:00 AM – 10:00 AM in Alton).
Does the time difference between Tokyo and Alton change?
Yes, for part of the year, because daylight saving time starts and ends on different dates or applies on one side only.