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Convert Chatham Time to French Southern & Antarctic Time

CHAST · UTC+12:45 → FSAT · UTC+5

CHAST is 7 hours 45 minutes ahead of FSAT

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

Chatham · CHADT

Thursday, 8 October 2026

Port-aux-Français · UTC+5

Wednesday, 7 October 2026

When are both sides at work?

0003060912151821
ChathamCHADT · +13:45
0003060912151821
Port-aux-FrançaisUTC+5 · +05:00
1518210003060912

No overlap in standard working hours. Closest workable window: 16:00–23:00 in Chatham, which is 07:15–14:15 in Port-aux-Français.

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

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01:11 Thu 8 Oct Chatham = 16:26 Wed 7 Oct Port-aux-Français

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Hour-by-hour conversion

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

About this conversion

CHAST here means Chatham Time, represented by Chatham (Pacific/Chatham), currently UTC+13:45. FSAT means French Southern & Antarctic Time, represented by Port-aux-Français (Indian/Kerguelen), currently UTC+5.

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

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