Indonesia Working Days Calculator
Count Indonesian working days with all 18 national public holidays excluded — for project timelines, supplier lead times, and delivery windows across Indonesia.
Count working days in Indonesia between any two dates — national public holidays excluded.
Calculate first, then reuse the result
After you calculate, UtilityPilot can turn the result into a clean note you can paste into your SOP, spreadsheet, CRM, Slack, Notion, checklist or email.
Plain-English result — paste into any tool
For internal process notes
For client-ready wording
For Notion, docs or wikis
Share the tool without your values
No sign-up · No stored inputs · Copied text does not include your entered values
Covers Indonesian national public holidays. Easter-based holidays (Good Friday, Easter Sunday, Ascension) are computed for any year. Islamic and lunar holidays (Idul Fitri, Idul Adha, Isra Mi'raj, Nyepi, Vesak) are from approximate annual override tables — verify with official Indonesian government announcements.
Formula
Working Days = Weekdays − National public holidays falling on weekdays
Count all Monday–Friday days in the range, then subtract any Indonesian national public holidays that fall on those weekdays. Indonesia's government also periodically declares 'cuti bersama' (collective leave) — unofficial bridge days surrounding major holidays — which many private employers observe. These are not included here as they vary by year and employer.
Worked Example
Scenario: A Jakarta manufacturer quotes a 15 working day production window starting Monday 24 March 2025.
Within this window: Nyepi (29 March, Saturday — no weekday deduction), Hari Raya Idul Fitri Day 1 (31 March, Monday) and Day 2 (1 April, Tuesday) both fall on weekdays.
15 working days + 2 weekday holidays (31 March + 1 April) = 17 weekdays forward
Result: deadline falls on ~17 April 2025
The Idul Fitri (Lebaran) period causes one of the largest commercial slowdowns in Indonesia. Many factories and suppliers also observe informal cuti bersama bridge days on the surrounding days — always confirm production schedules directly for any deadline spanning late March through early April.
Common Mistakes
- Underestimating the Lebaran shutdown. Hari Raya Idul Fitri (Lebaran) is the most commercially significant holiday in Indonesia. The two statutory public holidays are frequently surrounded by government-declared cuti bersama bridge days and informal closures. Many factories shut for a full week or more. Never plan critical production deadlines around late March or early April without confirming with your Indonesian supplier directly.
- Missing Pancasila Day as a public holiday. Pancasila Day (1 June) became an official national public holiday in 2017. It commemorates the birth of Indonesia's founding philosophy. Teams using older holiday lists or generic calculators frequently miss this date.
- Using fixed dates for lunar-based holidays. Four of Indonesia's national holidays — Idul Fitri, Idul Adha, the Islamic New Year, and the Prophet's Birthday — are based on the Islamic lunar calendar. Their Gregorian dates shift by approximately 10–11 days each year. Always check the official Presidential Decree for the current year's dates.
Guide
How to Use
- 1
Enter start and end dates
Select the period you want to measure. Both dates are inclusive in the count.
- 2
Click Calculate
The tool counts Monday–Friday days and deducts Indonesia's national public holidays for the selected year.
- 3
Review excluded holidays
The result shows working days and names any public holidays that fell within the range.
- 4
Check for cuti bersama and Lebaran closures
For any deadline near Idul Fitri or Idul Adha, confirm directly with your Indonesian counterpart whether they observe additional cuti bersama bridge days beyond the statutory holidays.
FAQ