Working Days in September 2025
September 2025 has 20 working days (160 working hours on an 8-hour day). Of 30 calendar days, 8 are Saturdays and Sundays, and Unification Day (substitute day), Independence Day fall on a weekday.
Calendar — September 2025
Public holidays in September 2025
- 6 SeptemberSaturdayUnification Dayfalls on a weekend
- 8 SeptemberMondayUnification Daysubstitute day (Labour Code Art. 154)
- 22 SeptemberMondayIndependence Day
Frequently asked questions
How many working days are there in September 2025?
September 2025 has 20 working days — from 30 calendar days, 8 Saturdays and Sundays and 2 official public holidays on weekdays are subtracted.
How many working hours are there in September 2025?
On a standard 8-hour working day, September 2025 has 160 working hours (20 working days × 8 hours).
Which public holidays fall in September 2025?
The official non-working days in September 2025 are: Unification Day — 6 September, Saturday; Unification Day (substitute day) — 8 September, Monday; Independence Day — 22 September, Monday.
How does the substitute-day rule work?
Under Art. 154(2) of the Bulgarian Labour Code, when an official public holiday (other than the Easter days) falls on a Saturday or Sunday, the next working day is non-working. A weekend holiday therefore still reduces the month’s working days — through its substitute day.
How many days off are there in September 2025?
September 2025 has 10 days off — 8 weekend days plus 2 holidays on weekdays.