St. Louis to Tokyo Time Difference
Tokyo is 14 hours ahead of St. Louis. When it is noon in St. Louis, it is 02:00 in Tokyo.
Chicago (UTC-5) → Tokyo (UTC+9)
🕐 Interactive Time Explorer
When it's 06:00 in St. Louis, it's 20:00 in Tokyo
Drag the slider to see corresponding times in both cities
🤝 Best Meeting Times
St. Louis & Tokyo◐ Extended Hours (3 hours)
✈️ Travel Information
Distance
10,292 km
Est. Flight Time
~13.1h
Time Difference
+14h
Work Hours Overlap
0h
None
🔴 Office Closed
No overlap available
No overlap
⏰ Quick Conversion
06:00
St. Louis
20:00
Tokyo
09:00
St. Louis
23:00
Tokyo
12:00
St. Louis
02:00
Tokyo (+1)
15:00
St. Louis
05:00
Tokyo (+1)
18:00
St. Louis
08:00
Tokyo (+1)
21:00
St. Louis
11:00
Tokyo (+1)
00:00
St. Louis
14:00
Tokyo
03:00
St. Louis
17:00
Tokyo
Frequently Asked Questions
How many hours is St. Louis behind Tokyo?
Tokyo is 14 hours ahead of St. Louis. When it is 12:00 noon in St. Louis, it is 02:00 in Tokyo. St. Louis operates on America/Chicago (UTC-5), while Tokyo uses Asia/Tokyo (UTC+9).
What is the best time to call Tokyo from St. Louis?
Standard business hours (9 AM–5 PM) do not overlap between St. Louis and Tokyo due to the 14 hours difference. Consider early morning or late evening calls, or use async communication.
Does the St. Louis to Tokyo time difference change throughout the year?
The time difference can shift by up to one hour when either city observes Daylight Saving Time (DST). DST transition dates differ between countries — typically March/April in the Northern Hemisphere and October in the Southern Hemisphere. Always verify the live difference above when scheduling important meetings near DST changeover dates.
Flying between St. Louis and Tokyo
The distance between St. Louis and Tokyo is approximately 10,292 km. A direct flight typically takes around 13.1 hours. Your arrival clock will show local Tokyo time — use our Flight Time Calculator to predict exact arrival times.