---
title: calendar
framework: foundation
role: symbol
role_heading: Instance Property
path: foundation/date/intervalformatstyle/calendar
---

# calendar

The calendar for formatting the date interval.

## Declaration

```swift
var calendar: Calendar
```

## See Also

### Specifying Date Interval Format Styles

- [timeZone(_:)](foundation/date/intervalformatstyle/timezone(_:).md)
- [locale(_:)](foundation/date/intervalformatstyle/locale(_:).md)
- [locale](foundation/date/intervalformatstyle/locale.md)
- [timeZone](foundation/date/intervalformatstyle/timezone.md)