---
title: NSISO8601Calendar
framework: foundation
role: symbol
role_heading: Global Variable
path: foundation/nsiso8601calendar
---

# NSISO8601Calendar

Identifier for the ISO8601 calendar.

## Declaration

```swift
let NSISO8601Calendar: String
```

## See Also

### Constants

- [NSGregorianCalendar](foundation/nsgregoriancalendar.md)
- [NSBuddhistCalendar](foundation/nsbuddhistcalendar.md)
- [NSChineseCalendar](foundation/nschinesecalendar.md)
- [NSHebrewCalendar](foundation/nshebrewcalendar.md)
- [NSIslamicCalendar](foundation/nsislamiccalendar.md)
- [NSIslamicCivilCalendar](foundation/nsislamiccivilcalendar.md)
- [NSJapaneseCalendar](foundation/nsjapanesecalendar.md)
- [NSRepublicOfChinaCalendar](foundation/nsrepublicofchinacalendar.md)
- [NSPersianCalendar](foundation/nspersiancalendar.md)
- [NSIndianCalendar](foundation/nsindiancalendar.md)