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Is Sunday 19 December 2066 a FedNow Service business day?

Yes: Sunday 19 December 2066 is a FedNow Service business day; the next FedNow Service business day is Monday 20 December 2066 (Zeitwide release 2026.11.04.1).

28 days of FedNow Service around Sun 19 Dec 2066

FedNow Service, Sun 12 Dec 2066 to Sat 8 Jan 2067
CalendarSun 12 Dec 2066Mon 13 Dec 2066Tue 14 Dec 2066Wed 15 Dec 2066Thu 16 Dec 2066Fri 17 Dec 2066Sat 18 Dec 2066Sun 19 Dec 2066Mon 20 Dec 2066Tue 21 Dec 2066Wed 22 Dec 2066Thu 23 Dec 2066Fri 24 Dec 2066Sat 25 Dec 2066Sun 26 Dec 2066Mon 27 Dec 2066Tue 28 Dec 2066Wed 29 Dec 2066Thu 30 Dec 2066Fri 31 Dec 2066Sat 1 Jan 2067Sun 2 Jan 2067Mon 3 Jan 2067Tue 4 Jan 2067Wed 5 Jan 2067Thu 6 Jan 2067Fri 7 Jan 2067Sat 8 Jan 2067
FedNow ServiceFedNow Service open Sun 12 Dec 2066FedNow Service open Mon 13 Dec 2066FedNow Service open Tue 14 Dec 2066FedNow Service open Wed 15 Dec 2066FedNow Service open Thu 16 Dec 2066FedNow Service open Fri 17 Dec 2066FedNow Service open Sat 18 Dec 2066FedNow Service open Sun 19 Dec 2066FedNow Service open Mon 20 Dec 2066FedNow Service open Tue 21 Dec 2066FedNow Service open Wed 22 Dec 2066FedNow Service open Thu 23 Dec 2066FedNow Service open Fri 24 Dec 2066FedNow Service open Sat 25 Dec 2066FedNow Service open Sun 26 Dec 2066FedNow Service open Mon 27 Dec 2066FedNow Service open Tue 28 Dec 2066FedNow Service open Wed 29 Dec 2066FedNow Service open Thu 30 Dec 2066FedNow Service open Fri 31 Dec 2066FedNow Service open Sat 1 Jan 2067FedNow Service open Sun 2 Jan 2067FedNow Service open Mon 3 Jan 2067FedNow Service open Tue 4 Jan 2067FedNow Service open Wed 5 Jan 2067FedNow Service open Thu 6 Jan 2067FedNow Service open Fri 7 Jan 2067FedNow Service open Sat 8 Jan 2067
  • Open
  • Closed
  • Weekend
  • Holiday on a weekend

Other calendars on Sun 19 Dec 2066

Sunday 19 December 2066 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
CHAPS (GB-CHAPS)No dataOutside this calendar's sources
England and Wales bank holidays (GB-EAW)No dataOutside this calendar's sources
FedACH Services (US-FEDACH)No dataOutside this calendar's sources
US federal holidays (US-FEDERAL)No dataOutside this calendar's sources
Fedwire Funds Service (US-FEDWIRE)No dataOutside this calendar's sources

Sources

No entry decides this date, so FedNow Service's weekend rule does. FedNow Service has no weekend: only published closures stop it.

Zeitwide release 2026.11.04.1. Evidence and signed receipt for FedNow Service on Sun 19 Dec 2066

FedNow Service has no published revision yet.

Cite this answer
Zeitwide (2026). US-FEDNOW on 2066-12-19. Release 2026.11.04.1. https://zeitwide.com/calendars/US-FEDNOW/2066-12-19

Questions people ask

What is the next FedNow Service business day after Sunday 19 December 2066?

The next FedNow Service business day is Monday 20 December 2066.

What are FedNow Service's operating hours?

FedNow Service is open around the clock on every day of the year.

Where does this answer come from?

The calendar's weekend rule, in Zeitwide release 2026.11.04.1.

The same answer from the API

curl https://api.zeitwide.com/v1/calendars/US-FEDNOW/days/2066-12-19

{
  "date": "2066-12-19",
  "is_business_day": true,
  "dataset_release": "2026.11.04.1"
}

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