Datescal is a calendar and dates reference site. It publishes verified dates for holidays, observances, university academic calendars, school district calendars, and monthly and yearly calendars.
What does Datescal cover?
Datescal covers dates that people need to plan around, especially dates that vary by institution, region, or year. The site organizes this information into six types of pages:
- Observance and holiday pages give the date of an observance, the body that designated it, and the rule that sets its date each year.
- University academic calendar pages give term dates, registration and add/drop deadlines, final exam periods, and commencement dates.
- School district calendar pages give the first and last day of school, holiday breaks, closures, and early release days.
- Individual date pages give the day of the week for a date across a 10-year span, along with that date’s observances and historical events.
- Month and year calendar pages give holidays, day and working-day counts, and moon phase dates.
How Datescal verifies dates
Datescal checks every date against a primary or authoritative source before it is published.
Datescal does not calculate dates from memory or estimate them. If a date cannot be verified, it does not appear on the page.
The source Datescal uses depends on the type of information, as the table below shows.
| Information type | Source used |
|---|---|
| Equinoxes, solstices, moon phases, eclipses | U.S. Naval Observatory; timeanddate.com |
| University academic calendars | The institution’s own published academic calendar |
| K-12 school calendars | The district’s board-approved calendar |
| U.S. federal holidays | U.S. Office of Personnel Management |
| International and awareness observances | The designating body, such as the United Nations, the World Health Organization, a national government, or the founding organization |
Datescal also follows these verification rules:
- Sources are cited in the same sentence as the date they support.
- If two authoritative sources give different values, the page states both and explains the difference.
- Pages about institutional calendars state when the source was last checked.
- Each weekday is checked separately against its date.
What Datescal is not
Datescal is not affiliated with, endorsed by, or acting for any university, school district, government agency, or observance organization named on the site.
Datescal is not the official source for any calendar it summarizes. When a Datescal page and an institution’s published calendar disagree, the institution’s calendar governs.
Datescal does not provide legal, financial, medical, or academic advice, and it does not handle enrollment, registration, or ticketing.
Corrections policy
Datescal corrects verified errors and records the change. To report an error, use the Contact Datescal page and include a link to the source that shows the correct date.
When a correction is made, the page’s last-updated date changes to show it.
How Datescal is funded
Datescal is funded by display advertising served through Google AdSense. Advertisers do not influence which topics Datescal covers or what its pages say.
Datescal does not accept payment to include, rank, or change any date or listing. Any sponsored content published in the future will be labeled as sponsored.