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Is Saturday 31 May 2025 a US federal holidays business day?

No: Saturday 31 May 2025 is not a US federal holidays business day, because US federal holidays is closed at weekends; US federal holidays reopens on Monday 2 June 2025 (Zeitwide release 2026.11.04.1).

28 days of US federal holidays around Sat 31 May 2025

US federal holidays, Sat 24 May 2025 to Fri 20 Jun 2025
CalendarSat 24 May 2025Sun 25 May 2025Mon 26 May 2025Tue 27 May 2025Wed 28 May 2025Thu 29 May 2025Fri 30 May 2025Sat 31 May 2025Sun 1 Jun 2025Mon 2 Jun 2025Tue 3 Jun 2025Wed 4 Jun 2025Thu 5 Jun 2025Fri 6 Jun 2025Sat 7 Jun 2025Sun 8 Jun 2025Mon 9 Jun 2025Tue 10 Jun 2025Wed 11 Jun 2025Thu 12 Jun 2025Fri 13 Jun 2025Sat 14 Jun 2025Sun 15 Jun 2025Mon 16 Jun 2025Tue 17 Jun 2025Wed 18 Jun 2025Thu 19 Jun 2025Fri 20 Jun 2025
US federal holidaysUS federal holidays closed for the weekend Sat 24 May 2025US federal holidays closed for the weekend Sun 25 May 2025US federal holidays closed Mon 26 May 2025: Memorial DayUS federal holidays open Tue 27 May 2025US federal holidays open Wed 28 May 2025US federal holidays open Thu 29 May 2025US federal holidays open Fri 30 May 2025US federal holidays closed for the weekend Sat 31 May 2025US federal holidays closed for the weekend Sun 1 Jun 2025US federal holidays open Mon 2 Jun 2025US federal holidays open Tue 3 Jun 2025US federal holidays open Wed 4 Jun 2025US federal holidays open Thu 5 Jun 2025US federal holidays open Fri 6 Jun 2025US federal holidays closed for the weekend Sat 7 Jun 2025US federal holidays closed for the weekend Sun 8 Jun 2025US federal holidays open Mon 9 Jun 2025US federal holidays open Tue 10 Jun 2025US federal holidays open Wed 11 Jun 2025US federal holidays open Thu 12 Jun 2025US federal holidays open Fri 13 Jun 2025US federal holidays closed for the weekend Sat 14 Jun 2025US federal holidays closed for the weekend Sun 15 Jun 2025US federal holidays open Mon 16 Jun 2025US federal holidays open Tue 17 Jun 2025US federal holidays open Wed 18 Jun 2025US federal holidays closed Thu 19 Jun 2025: Juneteenth National Independence DayUS federal holidays open Fri 20 Jun 2025
  • Open
  • Closed
  • Weekend
  • Holiday on a weekend

Other calendars on Sat 31 May 2025

Saturday 31 May 2025 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)CHAPS closed for the weekend Sat 31 May 2025Weekend
England and Wales bank holidays (GB-EAW)England and Wales bank holidays closed for the weekend Sat 31 May 2025Weekend
FedACH Services (US-FEDACH)No dataOutside this calendar's sources
FedNow Service (US-FEDNOW)FedNow Service open Sat 31 May 2025Business day
Fedwire Funds Service (US-FEDWIRE)No dataOutside this calendar's sources

Sources

No entry decides this date, so US federal holidays's weekend rule does. US federal holidays is closed every Saturday and Sunday.

Zeitwide release 2026.11.04.1. Evidence and signed receipt for US federal holidays on Sat 31 May 2025

US federal holidays revision 44, published .

Cite this answer
Zeitwide (2026). US-FEDERAL on 2025-05-31. Release 2026.11.04.1. https://zeitwide.com/calendars/US-FEDERAL/2025-05-31

Questions people ask

When does US federal holidays reopen after Saturday 31 May 2025?

US federal holidays reopens on Monday 2 June 2025.

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?

The calendar's weekend rule and no closure for it in U.S. Office of Personnel Management, in Zeitwide release 2026.11.04.1.

The same answer from the API

curl https://api.zeitwide.com/v1/calendars/US-FEDERAL/days/2025-05-31

{
  "date": "2025-05-31",
  "is_business_day": false,
  "dataset_release": "2026.11.04.1"
}

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