Is Tuesday 31 December 2030 a US federal holidays business day?
Yes: Tuesday 31 December 2030 is a US federal holidays business day, as no closure for it appears in U.S. Office of Personnel Management; the next US federal holidays business day is beyond Zeitwide's published range (Zeitwide release 2026.11.04.1).
28 days of US federal holidays around Tue 31 Dec 2030
- Open
- Closed
- Weekend
- Holiday on a weekend
Other calendars on Tue 31 Dec 2030
| Calendar | Status | Why |
|---|---|---|
| Germany: nationwide public holidays (DE) | No data | Outside this calendar's sources |
| T2 (TARGET RTGS) (EU-T2) | No data | Outside this calendar's sources |
| CHAPS (GB-CHAPS) | No data | Outside this calendar's sources |
| England and Wales bank holidays (GB-EAW) | No data | Outside this calendar's sources |
| FedACH Services (US-FEDACH) | FedACH Services open Tue 31 Dec 2030 | Business day |
| FedNow Service (US-FEDNOW) | FedNow Service open Tue 31 Dec 2030 | Business day |
| Fedwire Funds Service (US-FEDWIRE) | Fedwire Funds Service open Tue 31 Dec 2030 | Business day |
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 Tue 31 Dec 2030
US federal holidays revision 44, published .
Zeitwide (2026). US-FEDERAL on 2030-12-31. Release 2026.11.04.1. https://zeitwide.com/calendars/US-FEDERAL/2030-12-31
Questions people ask
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/2030-12-31
{
"date": "2030-12-31",
"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