| Intervalldauer | Nominativ, Singular | nominative case, singular | |
| Intervalldauere | Genitiv, Singular | genitive case, singular | |
| Intervalldaueren | Dativ, Singular | dative case, singular | |
| Intervalldauer(e)s | Akkusativ, Singular | accusative case, singular | |
| Intervalldauerer | Nominativ, Plural | nominative case, plural | |
| Intervalldauerern | Genitiv, Plural | genitive case, plural | |
| Intervalldauern | Dativ, Plural | dative case, plural |