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Is Monday 17 January 2028 a US federal holidays business day?

No: Monday 17 January 2028 is not a US federal holidays business day, because US federal holidays is closed for Birthday of Martin Luther King, Jr., according to U.S. Office of Personnel Management; US federal holidays reopens on Tuesday 18 January 2028 (Zeitwide release 2026.11.04.1).

28 days of US federal holidays around Mon 17 Jan 2028

US federal holidays, Mon 10 Jan 2028 to Sun 6 Feb 2028
CalendarMon 10 Jan 2028Tue 11 Jan 2028Wed 12 Jan 2028Thu 13 Jan 2028Fri 14 Jan 2028Sat 15 Jan 2028Sun 16 Jan 2028Mon 17 Jan 2028Tue 18 Jan 2028Wed 19 Jan 2028Thu 20 Jan 2028Fri 21 Jan 2028Sat 22 Jan 2028Sun 23 Jan 2028Mon 24 Jan 2028Tue 25 Jan 2028Wed 26 Jan 2028Thu 27 Jan 2028Fri 28 Jan 2028Sat 29 Jan 2028Sun 30 Jan 2028Mon 31 Jan 2028Tue 1 Feb 2028Wed 2 Feb 2028Thu 3 Feb 2028Fri 4 Feb 2028Sat 5 Feb 2028Sun 6 Feb 2028
US federal holidaysUS federal holidays open Mon 10 Jan 2028US federal holidays open Tue 11 Jan 2028US federal holidays open Wed 12 Jan 2028US federal holidays open Thu 13 Jan 2028US federal holidays open Fri 14 Jan 2028US federal holidays closed for the weekend Sat 15 Jan 2028US federal holidays closed for the weekend Sun 16 Jan 2028US federal holidays closed Mon 17 Jan 2028: Birthday of Martin Luther King, Jr.US federal holidays open Tue 18 Jan 2028US federal holidays open Wed 19 Jan 2028US federal holidays open Thu 20 Jan 2028US federal holidays open Fri 21 Jan 2028US federal holidays closed for the weekend Sat 22 Jan 2028US federal holidays closed for the weekend Sun 23 Jan 2028US federal holidays open Mon 24 Jan 2028US federal holidays open Tue 25 Jan 2028US federal holidays open Wed 26 Jan 2028US federal holidays open Thu 27 Jan 2028US federal holidays open Fri 28 Jan 2028US federal holidays closed for the weekend Sat 29 Jan 2028US federal holidays closed for the weekend Sun 30 Jan 2028US federal holidays open Mon 31 Jan 2028US federal holidays open Tue 1 Feb 2028US federal holidays open Wed 2 Feb 2028US federal holidays open Thu 3 Feb 2028US federal holidays open Fri 4 Feb 2028US federal holidays closed for the weekend Sat 5 Feb 2028US federal holidays closed for the weekend Sun 6 Feb 2028
  • Open
  • Closed
  • Weekend
  • Holiday on a weekend

Other calendars on Mon 17 Jan 2028

Monday 17 January 2028 on 7 other calendars
CalendarStatusWhy
Germany: nationwide public holidays (DE)No dataOutside this calendar's sources
T2 (TARGET RTGS) (EU-T2)T2 (TARGET RTGS) open Mon 17 Jan 2028Business day
CHAPS (GB-CHAPS)CHAPS open Mon 17 Jan 2028Business day
England and Wales bank holidays (GB-EAW)England and Wales bank holidays open Mon 17 Jan 2028Business day
FedACH Services (US-FEDACH)FedACH Services closed Mon 17 Jan 2028: Birthday of Martin Luther King, Jr.Birthday of Martin Luther King, Jr.
FedNow Service (US-FEDNOW)FedNow Service open Mon 17 Jan 2028Business day
Fedwire Funds Service (US-FEDWIRE)Fedwire Funds Service closed Mon 17 Jan 2028: Birthday of Martin Luther King, Jr.Birthday of Martin Luther King, Jr.

Sources

Zeitwide release 2026.11.04.1. Evidence and signed receipt for US federal holidays on Mon 17 Jan 2028

US federal holidays revision 44, published .

Cite this answer
Zeitwide (2026). US-FEDERAL on 2028-01-17. Release 2026.11.04.1. https://zeitwide.com/calendars/US-FEDERAL/2028-01-17

Questions people ask

When does US federal holidays reopen after Monday 17 January 2028?

US federal holidays reopens on Tuesday 18 January 2028.

Which days is US federal holidays closed?

US federal holidays is closed every Saturday and Sunday. It also closes on the holidays published by U.S. Office of Personnel Management.

Where does this answer come from?

U.S. Office of Personnel Management, last read 1 Nov 2026, 02:45 UTC. The operator published this date. It is in Zeitwide release 2026.11.04.1.

The same answer from the API

curl https://api.zeitwide.com/v1/calendars/US-FEDERAL/days/2028-01-17

{
  "date": "2028-01-17",
  "is_business_day": false,
  "reason": "Birthday of Martin Luther King, Jr.",
  "dataset_release": "2026.11.04.1"
}

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