Time Difference: Tokyo to Hanoi
See the live time in both Tokyo and Hanoi and convert any hour between JST and ICT instantly.
Use the Time Difference: Tokyo to Hanoi
Current offset
Tokyo is 2 hours ahead of Hanoi
Neither Japan nor Vietnam observes Daylight Saving Time — the gap is always exactly 2 hours.
24-Hour Meeting Planner
Each column is one hour. Green = both cities in business hours (09:00–18:00). Red = Tokyo only. Orange = Hanoi only. Gray = outside business hours.
Convert a Specific Time
Tokyo → Hanoi
Hanoi → Tokyo
Summary
Tokyo runs on Japan Standard Time (JST, UTC+9) year-round — Japan does not observe Daylight Saving Time. Hanoi runs on Indochina Time (ICT, UTC+7) year-round. The gap between the two cities is always exactly 2 hours, with Tokyo ahead. This tool shows live clocks for both cities, confirms the fixed 2-hour offset, and lets you convert any Tokyo hour to the matching Hanoi hour and vice versa.
How it works
- The tool reads your browser clock and converts it to both Tokyo (JST, UTC+9) and Hanoi (ICT, UTC+7) using their IANA timezone identifiers.
- Neither Japan nor Vietnam observes Daylight Saving Time, so the offset is a fixed 2 hours throughout the year.
- Live clocks update every second so you always see the current local time in each city.
- The time converter lets you pick any Tokyo hour and instantly shows the matching Hanoi hour, noting when the result falls on the next or previous calendar day.
- The meeting planner grid highlights business hours (09:00–18:00) for each city across all 24 hours so you can spot call windows at a glance.
Use cases
- Schedule video calls between a Tokyo office and a Hanoi team.
- Check whether a Hanoi colleague is still at work when it is late afternoon in Tokyo.
- Convert a flight departure time in Tokyo to local Hanoi arrival context.
- Plan client meetings that work for both Japan and Vietnam participants.
- Confirm the exact Hanoi time before sending a time-sensitive message.
- Understand the fixed 2-hour gap without mental arithmetic.