Current Date And Time In Sienno, Poland
Tuesday, 25 August 2026
16:00:18 CEST
State: Mazovia
Currency: Polish Zloty (PLN)
Timezone: UTC +01:00 (CEST)
Population: 750
District: Powiat lipski
Find official public holiday dates and bank operating schedules for Sienno. Stay informed on statutory non-working days for businesses, logistics, and offices in Sienno.
Corporate teams, logistics hubs, and financial offices in Sienno align operating hours with statutory government gazette notifications. Fixed statutory national holidays (such as Święto Konstytucji 3 Maja (Constitution Day) on May 3) mandate official non-working status for banks and government offices in Sienno.
This is Poland's national public holiday calendar — the same live calendar shown on Poland's country-level and Mazovia holiday pages — embedded here because public holidays are set nationally and apply the same way in Sienno as anywhere else in Poland.
◀ Showing upcoming public holidays — use the back arrow in the calendar toolbar to browse earlier dates this year.
These are Poland's official statutory fixed-date public holidays — the same national list shown on Poland's country and Mazovia holiday pages — mandated by national labor law and applicable to financial institutions, schools, and government administration in Sienno just as everywhere else in Poland.
| Holiday Name | Fixed Date | Category | Closure Status | Official Source |
|---|---|---|---|---|
| Święto Konstytucji 3 Maja (Constitution Day) | May 3 | National Holiday | Full Statutory Closure (Mandatory Non-Working Day) | www.gov.pl |
| Narodowe Święto Niepodległości (Independence Day) | November 11 | National Holiday | Full Statutory Closure (Banks & Retail Closed) | www.gov.pl |
Statutory holidays landing on a Monday, Friday, Tuesday or Thursday create a long-weekend opportunity — here's what's coming up.
| Holiday | Date | Opportunity |
|---|---|---|
| Święto Konstytucji 3 Maja (Constitution Day) | Mon, May 3, 2027 | Automatic 3-day weekend |
In Sienno, statutory public holidays signify mandatory closures for commercial bank branches, municipal administration offices, and public schools. Retail businesses and hospitality venues may operate on modified holiday hours.
When a holiday lands on a weekend, Sienno's banks and offices follow whatever substitute-day rule Poland declares nationally — check the live calendar above for that year's actual observed date.
With a population of 750 and running on the Europe/Warsaw time zone, Sienno follows Poland's statutory holiday dates on local calendar days — no cross-timezone adjustment needed for a purely domestic holiday list.