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Is Tuesday 28 December 2021 a CHAPS business day?

No: Tuesday 28 December 2021 is not a CHAPS business day, because CHAPS is closed for Boxing Day (Substitute day), according to GOV.UK (Government Digital Service); CHAPS reopens on Wednesday 29 December 2021 at 06:00 Europe/London (Zeitwide release 2026.11.04.1).

28 days of CHAPS around Tue 28 Dec 2021

CHAPS, Tue 21 Dec 2021 to Mon 17 Jan 2022
CalendarTue 21 Dec 2021Wed 22 Dec 2021Thu 23 Dec 2021Fri 24 Dec 2021Sat 25 Dec 2021Sun 26 Dec 2021Mon 27 Dec 2021Tue 28 Dec 2021Wed 29 Dec 2021Thu 30 Dec 2021Fri 31 Dec 2021Sat 1 Jan 2022Sun 2 Jan 2022Mon 3 Jan 2022Tue 4 Jan 2022Wed 5 Jan 2022Thu 6 Jan 2022Fri 7 Jan 2022Sat 8 Jan 2022Sun 9 Jan 2022Mon 10 Jan 2022Tue 11 Jan 2022Wed 12 Jan 2022Thu 13 Jan 2022Fri 14 Jan 2022Sat 15 Jan 2022Sun 16 Jan 2022Mon 17 Jan 2022
CHAPSCHAPS open Tue 21 Dec 2021CHAPS open Wed 22 Dec 2021CHAPS open Thu 23 Dec 2021CHAPS open Fri 24 Dec 2021CHAPS closed for the weekend Sat 25 Dec 2021CHAPS closed for the weekend Sun 26 Dec 2021CHAPS closed Mon 27 Dec 2021: Christmas Day (Substitute day)CHAPS closed Tue 28 Dec 2021: Boxing Day (Substitute day)CHAPS open Wed 29 Dec 2021CHAPS open Thu 30 Dec 2021CHAPS open Fri 31 Dec 2021CHAPS closed for the weekend Sat 1 Jan 2022CHAPS closed for the weekend Sun 2 Jan 2022CHAPS closed Mon 3 Jan 2022: New Year's Day (Substitute day)CHAPS open Tue 4 Jan 2022CHAPS open Wed 5 Jan 2022CHAPS open Thu 6 Jan 2022CHAPS open Fri 7 Jan 2022CHAPS closed for the weekend Sat 8 Jan 2022CHAPS closed for the weekend Sun 9 Jan 2022CHAPS open Mon 10 Jan 2022CHAPS open Tue 11 Jan 2022CHAPS open Wed 12 Jan 2022CHAPS open Thu 13 Jan 2022CHAPS open Fri 14 Jan 2022CHAPS closed for the weekend Sat 15 Jan 2022CHAPS closed for the weekend Sun 16 Jan 2022CHAPS open Mon 17 Jan 2022
  • Open
  • Closed
  • Weekend
  • Holiday on a weekend

Other calendars on Tue 28 Dec 2021

Tuesday 28 December 2021 on 7 other calendars
CalendarStatusWhy
Germany: nationwide public holidays (DE)No dataOutside this calendar's sources
T2 (TARGET RTGS) (EU-T2)No dataOutside this calendar's sources
England and Wales bank holidays (GB-EAW)England and Wales bank holidays closed Tue 28 Dec 2021: Boxing Day (Substitute day)Boxing Day (Substitute day)
FedACH Services (US-FEDACH)No dataOutside this calendar's sources
US federal holidays (US-FEDERAL)No dataOutside this calendar's sources
FedNow Service (US-FEDNOW)FedNow Service open Tue 28 Dec 2021Business day
Fedwire Funds Service (US-FEDWIRE)No dataOutside this calendar's sources

Sources

Zeitwide release 2026.11.04.1. Evidence and signed receipt for CHAPS on Tue 28 Dec 2021

CHAPS revision 68, published .

Cite this answer
Zeitwide (2026). GB-CHAPS on 2021-12-28. Release 2026.11.04.1. https://zeitwide.com/calendars/GB-CHAPS/2021-12-28

Questions people ask

When does CHAPS reopen after Tuesday 28 December 2021?

CHAPS reopens on Wednesday 29 December 2021 at 06:00 Europe/London.

What are CHAPS's operating hours?

CHAPS is open from 06:00 to 18:00 Europe/London on business days.

Where does this answer come from?

GOV.UK (Government Digital Service), last read 28 Oct 2026, 15:46 UTC. Zeitwide projected this date from the operator's published rules; the operator has not listed it yet. It is in Zeitwide release 2026.11.04.1.

The same answer from the API

curl https://api.zeitwide.com/v1/calendars/GB-CHAPS/days/2021-12-28

{
  "date": "2021-12-28",
  "is_business_day": false,
  "reason": "Boxing Day (Substitute day)",
  "dataset_release": "2026.11.04.1"
}

Agents get it from the is_business_day MCP tool. The developer quickstart covers keys, MCP and webhooks