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Convert Japan Time to Ulaanbaatar Time

JST · UTC+9 → ULAT · UTC+8

JST is 1 hour ahead of ULAT

Tokyo · UTC+9

Tuesday, 8 September 2026

Ulan Bator · UTC+8

Tuesday, 8 September 2026

When are both sides at work?

0003060912151821
TokyoUTC+9 · +09:00
0003060912151821
Ulan BatorUTC+8 · +08:00
2302050811141720

Shared working hours: 10:00–18:00 in Tokyo is 09:00–17:00 in Ulan Bator.

Working (09–18) Awake, off the clock Asleep (23–07)

Pick a time and share it

16:06 Tue 8 Sep Tokyo = 15:06 Tue 8 Sep Ulan Bator

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Hour-by-hour conversion

Tokyo (JST)Ulan Bator (ULAT)
00:0023:00prev. day
01:0000:00
02:0001:00
03:0002:00
04:0003:00
05:0004:00
06:0005:00
07:0006:00
08:0007:00
09:0008:00
10:0009:00Both at work
11:0010:00Both at work
12:0011:00Both at work
13:0012:00Both at work
14:0013:00Both at work
15:0014:00Both at work
16:0015:00Now
17:0016:00Both at work
18:0017:00
19:0018:00
20:0019:00
21:0020:00
22:0021:00
23:0022:00

About this conversion

JST here means Japan Time, represented by Tokyo (Asia/Tokyo), currently UTC+9. ULAT means Ulaanbaatar Time, represented by Ulan Bator (Asia/Ulaanbaatar), currently UTC+8.

Working hours are shown as 09:00–18:00 local, and sleeping hours as 23:00–07:00. The hour table is anchored on the current day in Tokyo; day boundaries are marked where the date differs.

Quick answers

  • 09:00 JST is 08:00 ULAT
  • 12:00 JST is 11:00 ULAT
  • 15:00 JST is 14:00 ULAT
  • 18:00 JST is 17:00 ULAT

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