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Is Monday 21 September 2099 a FedNow Service business day?

Yes: Monday 21 September 2099 is a FedNow Service business day; the next FedNow Service business day is Tuesday 22 September 2099 (Zeitwide release 2026.11.04.1).

28 days of FedNow Service around Mon 21 Sept 2099

FedNow Service, Mon 14 Sept 2099 to Sun 11 Oct 2099
CalendarMon 14 Sept 2099Tue 15 Sept 2099Wed 16 Sept 2099Thu 17 Sept 2099Fri 18 Sept 2099Sat 19 Sept 2099Sun 20 Sept 2099Mon 21 Sept 2099Tue 22 Sept 2099Wed 23 Sept 2099Thu 24 Sept 2099Fri 25 Sept 2099Sat 26 Sept 2099Sun 27 Sept 2099Mon 28 Sept 2099Tue 29 Sept 2099Wed 30 Sept 2099Thu 1 Oct 2099Fri 2 Oct 2099Sat 3 Oct 2099Sun 4 Oct 2099Mon 5 Oct 2099Tue 6 Oct 2099Wed 7 Oct 2099Thu 8 Oct 2099Fri 9 Oct 2099Sat 10 Oct 2099Sun 11 Oct 2099
FedNow ServiceFedNow Service open Mon 14 Sept 2099FedNow Service open Tue 15 Sept 2099FedNow Service open Wed 16 Sept 2099FedNow Service open Thu 17 Sept 2099FedNow Service open Fri 18 Sept 2099FedNow Service open Sat 19 Sept 2099FedNow Service open Sun 20 Sept 2099FedNow Service open Mon 21 Sept 2099FedNow Service open Tue 22 Sept 2099FedNow Service open Wed 23 Sept 2099FedNow Service open Thu 24 Sept 2099FedNow Service open Fri 25 Sept 2099FedNow Service open Sat 26 Sept 2099FedNow Service open Sun 27 Sept 2099FedNow Service open Mon 28 Sept 2099FedNow Service open Tue 29 Sept 2099FedNow Service open Wed 30 Sept 2099FedNow Service open Thu 1 Oct 2099FedNow Service open Fri 2 Oct 2099FedNow Service open Sat 3 Oct 2099FedNow Service open Sun 4 Oct 2099FedNow Service open Mon 5 Oct 2099FedNow Service open Tue 6 Oct 2099FedNow Service open Wed 7 Oct 2099FedNow Service open Thu 8 Oct 2099FedNow Service open Fri 9 Oct 2099FedNow Service open Sat 10 Oct 2099FedNow Service open Sun 11 Oct 2099
  • Open
  • Closed
  • Weekend
  • Holiday on a weekend

Other calendars on Mon 21 Sept 2099

Monday 21 September 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 Mon 21 Sept 2099

FedNow Service has no published revision yet.

Cite this answer
Zeitwide (2026). US-FEDNOW on 2099-09-21. Release 2026.11.04.1. https://zeitwide.com/calendars/US-FEDNOW/2099-09-21

Questions people ask

What is the next FedNow Service business day after Monday 21 September 2099?

The next FedNow Service business day is Tuesday 22 September 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/2099-09-21

{
  "date": "2099-09-21",
  "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