Declension table of ?āpatkāla

Masculine	Singular	Dual	Plural
Nominative	āpatkālaḥ	āpatkālau	āpatkālāḥ
Vocative	āpatkāla	āpatkālau	āpatkālāḥ
Accusative	āpatkālam	āpatkālau	āpatkālān
Instrumental	āpatkālena	āpatkālābhyām	āpatkālaiḥ āpatkālebhiḥ
Dative	āpatkālāya	āpatkālābhyām	āpatkālebhyaḥ
Ablative	āpatkālāt	āpatkālābhyām	āpatkālebhyaḥ
Genitive	āpatkālasya	āpatkālayoḥ	āpatkālānām
Locative	āpatkāle	āpatkālayoḥ	āpatkāleṣu

Compound āpatkāla -

Adverb -āpatkālam -āpatkālāt