How many days between two dates?

To find days between two dates, subtract the earlier date from the later date. For example, from January 1 to December 31 of the same year is 364 days (365 in a leap year). Our calculator handles leap years, month-length differences, and can exclude weekends and public holidays automatically.

Which country has the most public holidays?

India has the most national public holidays among major economies, with approximately 21 national and bank holidays per year — though many are state-specific. Japan has 16 national holidays. China officially has 11, but surrounding weekdays are sometimes required to be worked to create extended holiday clusters. The US has 11 federal holidays, though employees are not automatically entitled to them.

What counts as a working day in different countries?

A working day is typically Monday to Friday, excluding public holidays. However, some countries have different standard work weeks: in many Middle Eastern countries (including UAE and Saudi Arabia), the work week runs Sunday to Thursday, with Friday and Saturday as the weekend. Israel uses Sunday to Thursday as the typical work week.

How many days are in each month?

January: 31, February: 28 (29 in leap years), March: 31, April: 30, May: 31, June: 30, July: 31, August: 31, September: 30, October: 31, November: 30, December: 31. A year is a leap year if divisible by 4, except centuries must be divisible by 400 (so 2000 was a leap year, 1900 was not). The Gregorian calendar, adopted at different times by different countries, is now universal.

How do you calculate how many weeks between two dates?

Weeks between two dates = total days / 7. For example, from January 1 to December 31 is 364 days = 52 weeks exactly (in a non-leap year). From January 1 to June 30 is 181 days = 25.86 weeks (25 complete weeks + 6 days). The calculator above shows both complete weeks and remaining days for precision.

Date Difference Calculator — Days, Weeks, Months Between Two Dates

Date Difference Calculator

Calculate the exact number of days, working days, weeks, months, and years between any two dates.

Quick Answer

Days between two dates = later date − earlier date (counting every calendar day). For working days, subtract weekends and public holidays. The US has 261 working days/year; Japan has 249 (16 holidays); India has ~240 (21 national holidays). Leap years add 1 day to February (divisible by 4, except centuries must be divisible by 400).

Start Date

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Working Days vs Calendar Days: Country Differences

The calculator above counts Monday–Friday as working days (excluding weekends). However, public holidays vary significantly by country:

Country	Public Holidays/Year	Notes
🇮🇳 India	~21 (national + regional)	Many state-specific holidays on top of national ones
🇯🇵 Japan	16	Includes unique 'Golden Week' cluster in late April–early May
🇨🇳 China	11 (but substituted weekdays)	Creates "Golden Week" clusters where surrounding weekends are worked instead
🇫🇷 France	11	Very generous vacation law: 5 weeks minimum paid leave by law
🇩🇪 Germany	9–13 (varies by state)	Bavaria has the most public holidays; 24 days of paid leave typical
🇬🇧 United Kingdom	8 (England/Wales)	Scotland and N. Ireland have different holidays
🇺🇸 United States	11 (federal)	Many private employers observe 10 days; no federal paid leave law
🇦🇺 Australia	8 (national) + state days	Melbourne Cup Day is a public holiday only in metropolitan Melbourne

Date Formats Around the World

An often-overlooked difference: the date "01/02/03" means three different things:

January 2, 2003 — in the US (MM/DD/YY)
February 1, 2003 — in the UK and Europe (DD/MM/YY)
March 2, 2001 — in Japan and ISO standard (YY/MM/DD)

The ISO 8601 standard (YYYY-MM-DD) was created specifically to eliminate this ambiguity in international communication. It is required by the EU and used in computing, science, and international contracts.