World Timezones

Hanoi to Osaka Converter

Compare Osaka to Hanoi instead
Hanoi10:28 amMon, Jun 8
HanoiICT
Vietnam · UTC+7
10:28 amMon, Jun 8
12a
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10p
11p
OsakaJST
Japan · UTC+9
12:28 pmMon, Jun 8
2a
3a
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7a
8a
9a
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11a
12p
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6p
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12a
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Offset

The time difference between Hanoi and Osaka is 2 hours.

2 hours

Hanoi (ICT) is behind Osaka (JST).

ICT: UTC+7

JST: UTC+9

Neither Hanoi nor Osaka is currently observing daylight saving time.

When to schedule

Business-hours overlap: 9 AM–3 PM in Hanoi (11 AM–5 PM in Osaka).

Both teams are in working hours during this window on weekdays.

Suggested time: 12:00 PM Hanoi (2:00 PM Osaka).

Public holidays in 2026

National public holidays can affect availability — a counterpart is likely off work on their own holidays, so it's worth planning meetings and deadlines around them.

Vietnam

  • New Year's DayThu, Jan 1
  • Reunification DayThu, Apr 30
  • Labour DayFri, May 1
  • National DayWed, Sep 2

Japan

  • New Year's DayThu, Jan 1
  • Coming of Age DayMon, Jan 12
  • Foundation DayWed, Feb 11
  • The Emperor's BirthdayMon, Feb 23
  • Vernal Equinox DayFri, Mar 20
  • Shōwa DayWed, Apr 29
  • Constitution Memorial DayWed, May 6
  • Greenery DayMon, May 4
  • Children's DayTue, May 5
  • Marine DayMon, Jul 20
  • Mountain DayTue, Aug 11
  • Respect for the Aged DayMon, Sep 21
  • Autumnal Equinox DayWed, Sep 23
  • Sports DayMon, Oct 12
  • Culture DayTue, Nov 3
  • Labour Thanksgiving DayMon, Nov 23

About these zones

Hanoi uses Indochina Time (ICT). To call Vietnam, dial +84.

Osaka uses Japan Standard Time (JST). To call Japan, dial +81.

Osaka is approximately 2,050 miles northeast of Hanoi.

Quick reference

Full 24-hour conversion table — tap any time to open it in the converter.

HanoiOsakaDay
12:00 am2:00 amSame day
1:00 am3:00 amSame day
2:00 am4:00 amSame day
3:00 am5:00 amSame day
4:00 am6:00 amSame day
5:00 am7:00 amSame day
6:00 am8:00 amSame day
7:00 am9:00 amSame day
8:00 am10:00 amSame day
9:00 am11:00 amSame day
10:00 am12:00 pmSame day
11:00 am1:00 pmSame day
12:00 pm2:00 pmSame day
1:00 pm3:00 pmSame day
2:00 pm4:00 pmSame day
3:00 pm5:00 pmSame day
4:00 pm6:00 pmSame day
5:00 pm7:00 pmSame day
6:00 pm8:00 pmSame day
7:00 pm9:00 pmSame day
8:00 pm10:00 pmSame day
9:00 pm11:00 pmSame day
10:00 pm12:00 am+1 day
11:00 pm1:00 am+1 day

Daylight saving time

Neither Hanoi nor Osaka observes daylight saving time. The offset between these zones remains constant year-round.

See the daylight saving time page for transition dates across every time zone.

Daylight today

Hanoi
Sunrise
5:15 AM
Sunset
6:38 PM
Day length
13h 22m
Osaka
Sunrise
4:46 AM
Sunset
7:10 PM
Day length
14h 25m

Daylight overlap: 11h 55m — 5:15 AM–5:10 PM in Hanoi (7:15 AM–7:10 PM in Osaka). Both locations are in daylight during this window.

Cities in these zones

Other cities in Indochina Time

Browse all cities to see the current local time anywhere.

Airports in these zones

Airports in Indochina Time

  • HAN
  • BKK
  • DMK
  • HPH

Airports in Japan Standard Time

  • HND
  • NRT
  • ITM
  • KIX
  • UKB
  • NGO
  • NKM
  • CTS
  • OKD
  • FUK

Related conversions

Common conversions

What is 9:00 am Hanoi in Osaka?
9:00 am Hanoi is 11:00 am Osaka.
What is 12:00 pm Hanoi in Osaka?
12:00 pm Hanoi is 2:00 pm Osaka.
What is 12:30 pm Hanoi in Osaka?
12:30 pm Hanoi is 2:30 pm Osaka.
What is 2:00 pm Hanoi in Osaka?
2:00 pm Hanoi is 4:00 pm Osaka.
What is 5:00 pm Hanoi in Osaka?
5:00 pm Hanoi is 7:00 pm Osaka.
What is 11:30 pm Hanoi in Osaka?
11:30 pm Hanoi is 1:30 am Osaka, the next day.