When you visit a school calendar page, you usually want a quick answer to a simple question: when does school start, when is the next long break, or which days are students off?
Maryland school systems publish those answers in different ways. Some use a clean one‑page PDF. Others post a board‑approved calendar document. Some keep dates on a district website, in a downloadable file, or across several calendar notices. Our job is to turn those official public sources into pages that families can scan easily – without losing the care that calendar dates deserve.
We Start with Official Public Sources
We gather calendar data by manual review. A person reviews public school system sources like official calendar pages, board‑approved PDFs, district‑published documents, and school system updates.
We prefer sources that come directly from the local school system: documents or pages published by the district, calendars approved or adopted by the board, and official updates. We do not treat unofficial summaries, copied calendars, social media posts without a district source, or third‑party calendar lists as the final source for a school year.
If a calendar is clearly marked official, adopted, approved, or currently published by the school system for that year, we treat it as an official source. If the district hasn't published the year yet, or if the document is clearly labeled draft, tentative, or proposed, we handle it differently and label the page more carefully.
We Do Not Copy Every Line into the Page
Official school calendars often include more than family‑facing dates. They may contain teacher workdays, staff planning days, report card dates, grading period markers, assessment windows, board notes, or internal administrative deadlines.
Those items matter in the official document, but not every one belongs in the main family calendar view. Our page rules separate the source record from what you see on the page:
- The source record keeps track of calendar facts that can be verified from the official document.
- The public page focuses on dates that affect student attendance, family planning, transportation, childcare, or major breaks.
- The Key Dates section is a summary, not a full copy of the official PDF.
That's why a district page might show the first day, last day, Thanksgiving break, winter break, spring break, student holidays, and early release information, while leaving out purely administrative labels that don't change whether students attend school.
How We Decide What Appears in Key Dates
Key Dates are meant for fast planning. They usually include the first and last day of school, major breaks, named holidays, and full student no‑school days.
We normally don't put early release days in Key Dates because students still attend school. Early release information can still appear in the monthly calendar or notes when it affects pickup time or childcare. Testing windows also get careful treatment: they provide useful information, but they usually don't mean school is closed.
When a district document says "Teacher Workday" or "Professional Development Day," we look at the student impact. If the official source makes clear that students do not attend, the date can go on the page as a student holiday or no‑school day. If the date only affects staff while students attend normally, we leave it out of the main family calendar.
How We Handle Breaks and Nearby No‑School Days
Families often think in blocks of time: "How long is winter break?" or "Is the Monday after Thanksgiving also off?"
That's why we pay attention to no‑school days that connect directly to a named break. If a student no‑school day touches a major break, or is separated only by a weekend, the page may show the full period as one continuous student closure. The goal is to reflect how a family experiences the break, not just how the PDF labels each individual date.
We don't merge dates if there's a real student attendance day between them. The break should stay true to the school system's calendar.
How We Treat Weather Makeup and Conditional Dates
Maryland school calendars may include snow makeup days, emergency closure language, or conditional calendar dates. We handle these with extra care.
A possible makeup day is not the same as a confirmed day off or a confirmed school day. When the source describes a date as conditional, we keep that meaning. We don't present a possible makeup day as a guaranteed schedule change unless the district later activates or revises it.
This matters especially after winter weather or emergency closures, when school systems may update calendars after the original publication.
What Changes When a Calendar Is Updated
When a district publishes a new calendar or revises an existing one, updating the visible dates is only part of the work. A single change can affect the page title, summary text, first and last day fields, Key Dates, monthly calendar view, downloadable PDF, ICS calendar file, comparison page, and frequently asked questions.
Our update process checks all those connected areas together. This helps prevent a page from showing one date in the calendar grid and an older date in the text below it.
After a batch of calendar data changes, downloadable PDF and ICS files also need to be regenerated so they match the current page data.
Why the Site May Look Simpler than the Official PDF
A simpler page isn't meant to replace the district calendar. It helps families find the dates they're most likely to need.
The official school system source remains the authority. Our page is an independent planning aid that organizes official information into a more readable format. If a district issues a new version, or if a reader points us to a newer official source, we review it and update the page when appropriate.
If you notice a calendar issue, send us the school system name, school year, date in question, and official source link through our contact page. A clear official source helps us review the issue faster.