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Is Sunday 13 December 2099 a FedNow Service business day?

Yes: Sunday 13 December 2099 is a FedNow Service business day; the next FedNow Service business day is Monday 14 December 2099 (Zeitwide release 2026.11.04.1).

28 days of FedNow Service around Sun 13 Dec 2099

FedNow Service, Sun 6 Dec 2099 to Sat 2 Jan 2100
CalendarSun 6 Dec 2099Mon 7 Dec 2099Tue 8 Dec 2099Wed 9 Dec 2099Thu 10 Dec 2099Fri 11 Dec 2099Sat 12 Dec 2099Sun 13 Dec 2099Mon 14 Dec 2099Tue 15 Dec 2099Wed 16 Dec 2099Thu 17 Dec 2099Fri 18 Dec 2099Sat 19 Dec 2099Sun 20 Dec 2099Mon 21 Dec 2099Tue 22 Dec 2099Wed 23 Dec 2099Thu 24 Dec 2099Fri 25 Dec 2099Sat 26 Dec 2099Sun 27 Dec 2099Mon 28 Dec 2099Tue 29 Dec 2099Wed 30 Dec 2099Thu 31 Dec 2099Fri 1 Jan 2100Sat 2 Jan 2100
FedNow ServiceFedNow Service open Sun 6 Dec 2099FedNow Service open Mon 7 Dec 2099FedNow Service open Tue 8 Dec 2099FedNow Service open Wed 9 Dec 2099FedNow Service open Thu 10 Dec 2099FedNow Service open Fri 11 Dec 2099FedNow Service open Sat 12 Dec 2099FedNow Service open Sun 13 Dec 2099FedNow Service open Mon 14 Dec 2099FedNow Service open Tue 15 Dec 2099FedNow Service open Wed 16 Dec 2099FedNow Service open Thu 17 Dec 2099FedNow Service open Fri 18 Dec 2099FedNow Service open Sat 19 Dec 2099FedNow Service open Sun 20 Dec 2099FedNow Service open Mon 21 Dec 2099FedNow Service open Tue 22 Dec 2099FedNow Service open Wed 23 Dec 2099FedNow Service open Thu 24 Dec 2099FedNow Service open Fri 25 Dec 2099FedNow Service open Sat 26 Dec 2099FedNow Service open Sun 27 Dec 2099FedNow Service open Mon 28 Dec 2099FedNow Service open Tue 29 Dec 2099FedNow Service open Wed 30 Dec 2099FedNow Service open Thu 31 Dec 2099FedNow Service open Fri 1 Jan 2100FedNow Service open Sat 2 Jan 2100
  • Open
  • Closed
  • Weekend
  • Holiday on a weekend

Other calendars on Sun 13 Dec 2099

Sunday 13 December 2099 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 13 Dec 2099

FedNow Service has no published revision yet.

Cite this answer
Zeitwide (2026). US-FEDNOW on 2099-12-13. Release 2026.11.04.1. https://zeitwide.com/calendars/US-FEDNOW/2099-12-13

Questions people ask

What is the next FedNow Service business day after Sunday 13 December 2099?

The next FedNow Service business day is Monday 14 December 2099.

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/2099-12-13

{
  "date": "2099-12-13",
  "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