Time Difference Between Costa Mesa and Tokyo
Tokyo is 16 hours ahead Costa Mesa.
United States
Costa Mesa
America/Los_Angeles · UTC-7
Japan
Tokyo
Asia/Tokyo · UTC+9
Best Times to Meet
Hours where standard working time (9 AM – 6 PM) overlaps in both Costa Mesa and Tokyo.
Costa Mesa
5:00 PM
Tokyo
9:00 AM
Costa Mesa to Tokyo — 24-Hour Conversion
Each row shows the equivalent local time in Tokyo for an hour in Costa Mesa. Working-hours rows (9–18) are highlighted.
| Costa Mesa | Tokyo | Match |
|---|---|---|
| Workday in Tokyo | ||
| Workday in Tokyo | ||
| Off hours | ||
| Off hours | ||
| Off hours | ||
| Off hours | ||
| Off hours | ||
| Off hours | ||
| +1 day | Off hours | |
| +1 day | Workday in Costa Mesa | |
| +1 day | Workday in Costa Mesa | |
| +1 day | Workday in Costa Mesa | |
| +1 day | Workday in Costa Mesa | |
| +1 day | Workday in Costa Mesa | |
| +1 day | Workday in Costa Mesa | |
| +1 day | Workday in Costa Mesa | |
| +1 day | Workday in Costa Mesa | |
| +1 day | Best for meetings | |
| +1 day | Workday in Tokyo | |
| +1 day | Workday in Tokyo | |
| +1 day | Workday in Tokyo | |
| +1 day | Workday in Tokyo | |
| +1 day | Workday in Tokyo | |
| +1 day | Workday in Tokyo |
Frequently Asked Questions
What is the time difference between Costa Mesa and Tokyo?
Tokyo, Japan (UTC+9) is 16 hours ahead Costa Mesa, United States (UTC-7).
What is the best time to schedule a meeting between Costa Mesa and Tokyo?
The best meeting times overlap when both cities are within standard working hours (9 AM – 6 PM). The full hour-by-hour table on this page lists every overlap window.
Does daylight saving time change the difference between Costa Mesa and Tokyo?
Yes — when one city observes daylight saving time and the other does not, the gap shifts by an hour. The conversion table on this page reflects the current offset, including any active DST.
When it is 9 AM in Costa Mesa, what time is it in Tokyo?
Use the conversion table on this page — every hour in Costa Mesa is mapped to its equivalent local time in Tokyo, including day shift markers when the date differs.