Timezones.in — Stay In Sync

Convert Chatham Time to Ulaanbaatar Time

CHAST · UTC+12:45 → ULAT · UTC+8

CHAST is 4 hours 45 minutes ahead of ULAT

Today Chatham is on CHADT (UTC+13:45) and Ulan Bator on UTC+8 (UTC+8), so right now Chatham is 5 hours 45 minutes ahead of Ulan Bator.

Chatham · CHADT

Thursday, 8 October 2026

Ulan Bator · UTC+8

Wednesday, 7 October 2026

When are both sides at work?

0003060912151821
ChathamCHADT · +13:45
0003060912151821
Ulan BatorUTC+8 · +08:00
1821000306091215

Shared working hours: 15:00–18:00 in Chatham is 09:15–12:15 in Ulan Bator.

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

Pick a time and share it

01:11 Thu 8 Oct Chatham = 19:26 Wed 7 Oct Ulan Bator

Open in planner

Post this

XLinkedInWhatsAppFacebookTelegramEmail

Hour-by-hour conversion

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

About this conversion

CHAST here means Chatham Time, represented by Chatham (Pacific/Chatham), currently UTC+13:45. 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 Chatham; day boundaries are marked where the date differs.

Quick answers

  • 09:00 CHAST is 03:15 ULAT
  • 12:00 CHAST is 06:15 ULAT
  • 15:00 CHAST is 09:15 ULAT
  • 18:00 CHAST is 12:15 ULAT

Related conversions