Tokyo, Japan Ulaanbaatar, Mongolia

Tokyo is in the JST timezone (UTC+9) and Ulaanbaatar is in the +08 timezone (UTC+8). The time difference between them is 1 hour.

Use the timeline above to find overlapping business hours between Tokyo and Ulaanbaatar. The "Best time to meet" card highlights the window where both cities are within working hours (9 AM – 6 PM local time).

Neither Tokyo nor Ulaanbaatar observes Daylight Saving Time, so the time difference remains constant throughout the year.

Click the pencil icon next to the Tokyo clock and type any time. The Ulaanbaatar clock will update instantly, showing the exact corresponding time. You can also pick a date to account for DST changes.