何時

Pronoun

 * 1)  when; what time

Etymology 2
. The nan portion is, while the ji portion is derived from.

Pronoun

 * 1) what time, when

Usage notes

 * Often spelled in kanji. Nanji is more commonly used to mean in terms of time of day, while itsu is more commonly used to mean  in terms of dates or days.

Etymology 3
.

Pronoun

 * 1)  what time, when

Usage notes

 * Use is more limited than nanji or itsu. Most commonly found in set phrase, comparable to English phrase “when and at what time”, but only used when expressing ignorance, never used in questions.
 * May sound old-fashioned.