Boulder to Tokyo Time

Boulder, United States of America

Wed Jul, 01, 2026
9:23 AM

Boulder, Colorado, United States of America

Mountain Daylight Time (MDT)

MDT is 6 hours behind Universal Time (UTC-6)

Tokyo, Japan

Thu Jul, 02, 2026
12:23 AM

Tokyo, Tokyo, Japan

Japan Standard Time (JST)

JST is 9 hours ahead of Universal Time (UTC+9)

Boulder to Tokyo Time Conversion

When it is 12:00 PM in Boulder, it is 3:00 AM the next day in Tokyo.

📞There is no overlap during standard 9-to-5 business hours, so a call may need to be early or late in the day for one side.

Time difference between Boulder and Tokyo

Boulder is 15 hours behind Tokyo.

🕐 Add 15 hours to Boulder time to get Tokyo time.

Boulder uses 6 hours behind Universal Time (UTC-6) and Tokyo uses 9 hours ahead of Universal Time (UTC+9).

Boulder to Tokyo time conversion chart (24 hours)

Highlighted rows are overlapping 9-to-5 business hours – the best time to schedule a call between Boulder and Tokyo.
Boulder Time Tokyo Time
12 AM Boulder Time 3 PM Tokyo Time
1 AM Boulder Time 4 PM Tokyo Time
2 AM Boulder Time 5 PM Tokyo Time
3 AM Boulder Time 6 PM Tokyo Time
4 AM Boulder Time 7 PM Tokyo Time
5 AM Boulder Time 8 PM Tokyo Time
6 AM Boulder Time 9 PM Tokyo Time
7 AM Boulder Time 10 PM Tokyo Time
8 AM Boulder Time 11 PM Tokyo Time
9 AM Boulder Time 12 AM Tokyo Time
10 AM Boulder Time 1 AM Tokyo Time
11 AM Boulder Time 2 AM Tokyo Time
Boulder Time Tokyo Time
12 PM Boulder Time 3 AM Tokyo Time
1 PM Boulder Time 4 AM Tokyo Time
2 PM Boulder Time 5 AM Tokyo Time
3 PM Boulder Time 6 AM Tokyo Time
4 PM Boulder Time 7 AM Tokyo Time
5 PM Boulder Time 8 AM Tokyo Time
6 PM Boulder Time 9 AM Tokyo Time
7 PM Boulder Time 10 AM Tokyo Time
8 PM Boulder Time 11 AM Tokyo Time
9 PM Boulder Time 12 PM Tokyo Time
10 PM Boulder Time 1 PM Tokyo Time
11 PM Boulder Time 2 PM Tokyo Time

Boulder to Tokyo - Frequently Asked Questions

Q

What is the time difference between Boulder and Tokyo?

A

Boulder is 15 hours behind Tokyo.

Q

Is Boulder ahead of or behind Tokyo?

A

Boulder is behind Tokyo by 15 hours.

Q

When it is 9:00 AM in Boulder, what time is it in Tokyo?

A

It is 12:00 AM the next day in Tokyo.