DayOfWeek

DayOfWeek is a schema.org Enumeration for the seven weekdays plus public-holidays bucket. It originated in the GoodRelations vocabulary and is one of the most widely-used enums on schema.org because every LocalBusiness that publishes opening hours uses it.

It has 8 members:

Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday.
PublicHolidays: covers the union of all national / regional / religious holidays within the jurisdiction of the containing business.

Full example of schema.org/DayOfWeek json-ld markup

The markup is verified as valid with Rich Results Test from Google.

schema.org/DayOfWeek

<script type="application/ld+json">
{
  "@context": "https://schema.org",
  "@type": "Restaurant",
  "name": "The Dunmore Grill",
  "openingHoursSpecification": [
    {
      "@type": "OpeningHoursSpecification",
      "dayOfWeek": ["https://schema.org/Tuesday", "https://schema.org/Wednesday", "https://schema.org/Thursday"],
      "opens": "17:00",
      "closes": "22:00"
    },
    {
      "@type": "OpeningHoursSpecification",
      "dayOfWeek": ["https://schema.org/Friday", "https://schema.org/Saturday"],
      "opens": "17:00",
      "closes": "23:00"
    },
    {
      "@type": "OpeningHoursSpecification",
      "dayOfWeek": "https://schema.org/Sunday",
      "opens": "11:00",
      "closes": "20:00"
    },
    {
      "@type": "OpeningHoursSpecification",
      "dayOfWeek": "https://schema.org/PublicHolidays",
      "opens": "00:00",
      "closes": "00:00"
    }
  ]
}
</script>

Where DayOfWeek appears

OpeningHoursSpecification.dayOfWeek: opening hours (most common use).
Schedule.byDay: recurring Event days.
EducationalOccupationalProgram.dayOfWeek: class days.
ServicePeriod.businessDays, ShippingDeliveryTime.businessDays: service / delivery windows.

PublicHolidays caveat

PublicHolidays as a value is opaque — consumers cannot resolve which holidays apply without the business's locale. Google's opening-hours consumer treats it as "the business is closed (or has different hours) on public holidays". For precise holiday overrides, add additional OpeningHoursSpecification entries with validFrom / validThrough for specific dates.

Minimal valid version

The smallest markup that still produces a valid DayOfWeek entity. Use it as the floor. Reach for the advanced example above when you want search engines and AI agents to understand more about your content.

schema.org/DayOfWeek (minimal)

<script type="application/ld+json">
{
  "@context": "https://schema.org",
  "@type": "OpeningHoursSpecification",
  "dayOfWeek": ["https://schema.org/Monday", "https://schema.org/Tuesday"],
  "opens": "09:00",
  "closes": "17:00"
}
</script>

Google rich results this unlocks

DayOfWeek is a structural type. It does not produce a rich result on its own.

Its value comes from combining it with a primary type whose markup earns a rich result (Article, Product, Event, and so on). DayOfWeek becomes the trunk that the primary type branches off viamainEntityorbreadcrumb. Include it on every page as the backbone of your markup.

Common DayOfWeek mistakes

Mistakes that pass validation but silently fail to earn rich results or mislead consumers walking the graph. Avoid these and your markup will be ahead of most sites in the wild.

01
Abbreviated day names
Wrong
```
"dayOfWeek": "Mo"
```
Right
```
"dayOfWeek": "https://schema.org/Monday" (or the string "Monday")
```
schema.org's DayOfWeek uses full day names; abbreviations are a different (legacy openingHours text) format.

PublicHolidays with 00:00-00:00 meaning 'open all day'

Wrong

PublicHolidays with opens = 00:00 and closes = 00:00 interpreted as 24/7

Right

opens = 00:00 and closes = 00:00 means 'closed on public holidays' (the zero-duration convention); use explicit hours for open-on-holiday venues

Google reads opens == closes as 'closed'. If the venue is open on public holidays, publish real hours.

Schema properties in this example

DayOfWeek Enumeration Monday Tuesday Wednesday Thursday Friday Saturday Sunday PublicHolidays dayOfWeek OpeningHoursSpecification opens closes byDay Schedule businessDays

About the example data

DayOfWeek on the opening-hours spec for The Dunmore Grill.

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