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Vietnam Business Days Calculator

Calculate the number of business days in any period by subtracting weekends and Vietnamese public holidays. Enter the total calendar days, the number of weekend days (Saturday + Sunday), and the number of public holidays falling on weekdays. Vietnam public holidays (11 days/year): Tết Nguyên Đán (5 days), Giỗ Tổ Hùng Vương 10/3 (1 day), Ngày Giải Phóng 30/4 (1 day), Ngày Quốc tế Lao động 1/5 (1 day), Quốc Khánh 2/9 (2 days).

days
days
days

Fill in the fields above and click Calculate to see your results.

How to use

Calculate the number of business days in any period by subtracting weekends and Vietnamese public holidays. Enter the total calendar days, the number of weekend days (Saturday + Sunday), and the number of public holidays falling on weekdays. Vietnam public holidays (11 days/year): Tết Nguyên Đán (5 days), Giỗ Tổ Hùng Vương 10/3 (1 day), Ngày Giải Phóng 30/4 (1 day), Ngày Quốc tế Lao động 1/5 (1 day), Quốc Khánh 2/9 (2 days).

How it's calculated

Business Days

total_days - weekends_in_period - public_holidays

Working days after removing weekends and public holidays

Non-Working Days

weekends_in_period + public_holidays

Total weekends plus public holidays in the period

Examples

30-day month, 8 weekends, 0 holidays → 22 business days

  • Total Calendar Days:30
  • Public Holidays on Weekdays:0
  • Weekend Days (Sat + Sun):8

30-day month, 8 weekends, 2 holidays → 20 business days

  • Total Calendar Days:30
  • Public Holidays on Weekdays:2
  • Weekend Days (Sat + Sun):8

Frequently Asked Questions

How many public holidays does Vietnam have per year?

Vietnam has 11 official public holiday days per year: Tết Nguyên Đán (5 days), Giỗ Tổ Hùng Vương on the 10th day of the 3rd lunar month (1 day), Liberation Day on April 30 (1 day), International Labour Day on May 1 (1 day), and National Day on September 2 (2 days).

What if a public holiday falls on a weekend?

Under Vietnamese labour law, if a public holiday falls on a weekend, employees are entitled to a compensatory day off on the following Monday. In that case, do not count the holiday in the public_holidays input — it is already covered by the weekend count.

How do I count weekend days in a month?

A standard 30-day month typically contains 8 or 9 weekend days (Saturday and Sunday). You can count them manually on a calendar, or use the rule of thumb: multiply the number of full weeks by 2 and add any remaining weekend days.

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