Quick answer
10 AM PST is 3 AM the next day in Tokyo. If the source city is on PDT, 10 AM Pacific time is 2 AM the next day in Tokyo.
- 10 AM PST = 3 AM next day in Tokyo
- 10 AM PDT = 2 AM next day in Tokyo
- Tokyo uses Japan Standard Time all year
How to use this conversion for work meetings
Japan does not observe daylight saving time, but Pacific Time changes between PST and PDT. That is why calendar invitations should include the city and date, not only a three-letter abbreviation.
If this is a one-time call, confirm the exact date before sending the calendar invite. If it is a recurring meeting, check the time again around daylight-saving transition weeks. A one-hour mistake is common when a team uses abbreviations like EST, PST, GMT, or CET without naming the city.
For more than two people, use the Meeting Time Finder. It lets you add each participant, pick working hours, and find the shared window that keeps the meeting inside normal business hours.
What is 10 AM PST in Tokyo?
10 AM PST is 3 AM the next day in Tokyo. If the source city is on PDT, 10 AM Pacific time is 2 AM the next day in Tokyo.
Why can the answer change by one hour?
Daylight saving time can change the offset for one city while the other city stays fixed or changes on a different date.
How should I write this in a meeting invite?
Write the time with both cities and the date, for example: 3 PM London / 10 AM New York on June 14.
Can I compare this with more than two cities?
Yes. Use the main Meeting Time Finder tool to add multiple people, cities, and working hours.
Related timezone tools
Los Angeles to Tokyo meeting time · London to Tokyo meeting time · New York to London · London to Singapore · New York to Singapore · Sydney to New York