Holiday data for software and AI assistants

Ask your assistant

Give it a page, and it can read the answer from there:

• "From timebento.com/moving-holidays/diwali.html: how did Diwali move between 2025 and 2026, and what does it do to our monthly numbers?"
• "From timebento.com/holiday-calendar/2026-12.html: which countries have public holidays in the last week of December?"
• "From timebento.com/public-holidays/in.html: how many working days does India have in each quarter of 2027?"

Pages

• Moving holidays: dates, ISO weeks and how far each one moved.
• Public holidays by country and by month, with working days.
• llms.txt: the site in plain text for assistants.

JSON files

• data/moving-holidays.json, or one holiday, as in data/moving-holidays/diwali.json
• data/public-holidays/index.json, or one country, as in data/public-holidays/in.json
• data/calendar/2026-12.json: every country, for one month
• data/openapi.json: an OpenAPI description, for tools that import one

Holidays are national: regional ones are not included. Public holidays cover 2026 and 2027, and moving holidays run from 2015. Moon-based future dates are expected, and official announcements can differ by a day.

Tools for browser agents (WebMCP)

In a browser with WebMCP, every page of this site offers these tools with no server involved. They use the browser's clock, so they can also say whether a date is past or upcoming.

• get_holiday_shift: when a moving holiday falls and how far it moved.
• get_public_holidays: a country's holidays, and which dates moved.
• get_holidays_between: who has a holiday between two dates.
• get_working_days: working days per month and quarter, against the year before.

The app also offers world times, time conversion and meeting windows.