---
id: fast-foundation.calendar.weekdayformat
title: Calendar.weekdayFormat property
hide_title: true
---
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[@microsoft/fast-foundation](./fast-foundation.md) &gt; [Calendar](./fast-foundation.calendar.md) &gt; [weekdayFormat](./fast-foundation.calendar.weekdayformat.md)

## Calendar.weekdayFormat property

Format style for the week day labels

<b>Signature:</b>

```typescript
weekdayFormat: WeekdayFormat;
```