Our School Calendar Methodology

The evidence behind a calendar

IL School Calendar is an independent guide to public school calendars in Illinois. We organize district information for family planning; we do not issue school schedules or speak for a district or the Illinois State Board of Education.

Our date sources are district-published academic calendars, calendar webpages, board documents and relevant district notices. A school or program calendar may supply details that do not apply to the whole district. State education records help us identify districts, but they do not establish local school dates.

We check which school year and student group a document covers, along with any stated revision or approval date. Search results and other calendar websites can help locate a document, but they are not sufficient evidence for a date.

How we read and organize the dates

Dates are manually collected and screened from district materials. Reading a PDF includes checking its month grids, written notes and legend: shading, symbols and separate grade-level rows can change what an entry means.

We select dates useful to students and families, including school openings, holidays, breaks, conferences and changes to the school day. Staff-only entries are included when they explain why students have no classes during the school year. Event names may be shortened for readability while preserving their meaning.

One district can have more than one schedule

Illinois communities can have separate elementary and high school districts, and one district can publish different calendars for early childhood, particular campuses or other programs. We identify these differences before combining any dates.

When a school-year page offers several calendar versions, select the one that applies to the student. Its date cards, timeline, tables, monthly calendars and download links change together. A preschool closure, high school late arrival or grade-specific start date does not automatically apply to everyone else.

What the Official label tells you

Official identifies a calendar based on a district-published schedule for that year. It does not mean this website is affiliated with the district, that every date is unconditional, or that every document has a separately verified board-approval date.

We do not publish projected school-year calendars based on past patterns or neighboring districts. If a future schedule is not available or ready to publish, we leave it out. Unresolved details are qualified or withheld rather than presented as confirmed facts.

Breaks, days off and dates with conditions

A named break and the full period students are away from class are different things. Key Dates preserves the break’s dates; Extended Time Off can include adjoining weekends and confirmed closures for planning. A break explicitly listed across two months remains an official date range when displayed together.

An emergency make-up date is a possible attendance day, not a guaranteed holiday. A planned last day may move if emergency days are used. E-learning is instruction rather than a day off, and an early dismissal is different from a late start. These distinctions carry through to our calendar displays and downloads.

Checks, revisions and update dates

Before publication, we check date order, duplicate entries, source references, student scope and consistency between the main dates and event lists. Where a district publishes attendance totals or return dates, those details help check our interpretation. These checks can catch mistakes; they do not replace the district’s authority.

When district materials disagree, we examine their versions, notes and applicable student groups. A newer document must actually supersede the earlier schedule before it replaces a date. If the conflict remains unresolved, we preserve the uncertainty.

Last updated refers to changes to our calendar page, not necessarily a new district announcement or board action. Source-review dates are tracked separately. We review verifiable corrections and newer district publications, but there can be a delay before a district change appears here.

Printable PDFs and calendar apps

Download PDF provides our printable planning copy, not the district’s original document. The district materials remain linked in About This Calendar. Download ICS and the Google and Apple options use the selected calendar version.

A saved PDF or imported ICS file is a snapshot and does not update itself. A calendar subscription is different from an import; refresh timing depends on the calendar app. Check the current page and district source when a schedule changes, especially after weather closures or near the end of the year.

Sending a useful correction

Use Report a Correction on the affected calendar page or visit Contact. The calendar-page form opens an email draft with the page, district and school year; send that draft to complete the report.

Tell us which date or description needs attention and include a link to the relevant district calendar or notice. If several versions exist, name the campus or program. Screenshots can help explain the problem, but an accessible district source lets us check the surrounding notes and version. Reports are reviewed against the evidence before dates are changed.

When to check directly with the district

Annual calendars may omit bell times, transportation changes, individual conference appointments, ceremony details and later emergency announcements. A regional grouping on this site is a browsing aid, not an attendance boundary.

Use the district or school’s current publication for decisions about attendance, childcare or travel. Our aim is to make the published schedule easier to understand and its sources easier to find, while keeping the district’s own instructions as the authority.