A clean monthly calendar you can browse, print and use for quick date arithmetic — no account needed.
This tool runs entirely in your browser — no data is sent to our servers. If JavaScript is disabled, the fully interactive version will not run; enable JavaScript to compute results.
Sometimes you just want to see a calendar quickly — what weekday is the 23rd, how many days until next Wednesday, which month is two months out? Phone calendars are heavy with notifications, sync prompts and account requirements. A simple, printable monthly grid is often all you need to plan a trip, check a deadline or hand someone a paper schedule.
Today date is highlighted automatically so you can orient yourself in the month at a glance. Navigation arrows step forward and backward a month at a time, and the calendar handles month lengths and leap years correctly — including the slightly unintuitive rule that century years like 1900 and 2100 are NOT leap years even though they are divisible by 4, while years divisible by 400 (such as 2000) are.
The calendar you see uses the Gregorian system, introduced by Pope Gregory XIII in 1582 to correct the drift of the Julian calendar. Catholic countries adopted it immediately; Britain and its colonies waited until 1752 (and skipped 11 days in September that year to catch up); Russia held out until 1918, which is why the "October Revolution" actually happened in November on the Gregorian calendar. Many countries today still maintain parallel religious or civil calendars — Hijri, Hebrew, Persian, Bengali, Thai, Buddhist — but the Gregorian remains the international civil standard.
Week-start conventions differ across the world. ISO 8601 (used widely in Europe and in business software) starts the week on Monday and numbers weeks 1–52 (or 53) per year, with week 1 defined as the one containing the first Thursday. Most US, Canadian, Japanese and some Latin American calendars start the week on Sunday. A handful of Middle Eastern countries traditionally start on Saturday. None of this changes which day a date falls on — only how the grid is laid out — but it matters when comparing calendars across teams.
For physical planning — wall calendars, paper agendas, exam timetables, marathon training blocks — the page is designed to print cleanly without sidebar, header or footer chrome. If you want to work out which weekday a historical date fell on without a computer, Zeller's congruence is the classical algorithm: a short modular-arithmetic formula that takes day, month and year and returns a weekday number. Modern languages have this built into the date library, but the maths is worth knowing if you ever need to settle a "what day was I born" argument on paper.
Once loaded, yes. The calendar is rendered entirely in the browser and does not depend on a server for the date logic. As long as the tab stays open you can navigate freely without a connection.
Yes — navigate to the month you want, then use the Print button. Standard browser print settings let you control paper size, orientation, margins and whether headers and footers appear.
Not currently — the calendar is a clean grid without holiday overlays, because what counts as a public holiday varies by country, region and year. Tell us via Contact if you would like region-specific holiday markers added.
The grid follows the common Sunday-first layout used in much of the English-speaking world, but the dates themselves are correct regardless of where you live. If you mentally prefer Monday-first, the date columns are still in the same order — only the visual starting column changes.
Automatically. February has 29 days in any year divisible by 4, except century years not divisible by 400. So 2000 had a 29 February, 1900 did not, and 2100 will not. The next leap year after 2024 is 2028.
The current grid does not display them. If you need to coordinate with an ISO-week-based system (common in European logistics, payroll and project management), count weeks from the first one containing a Thursday — that is the ISO definition of week 1.
The Online Calendar Tool lives alongside Age Calculator, Date Convert to Major Calendars, Date Count Calculator on the Productivity page. That landing page collects every productivity tool Dailiyo publishes, plus the editorial notes on formula sources, review cadence and how each result should (and should not) be interpreted. If a related productivity calculation isn't yet in the collection and you'd like to see it, drop a line via the contact page — the editorial team reviews every request and prioritises tools that come up most often in reader questions.