When

いつ

itsu

(at what time, as a direct question)

何時

itsu

(at what time, as a direct question)

...したとき

...shita toki

(as soon as, at the time that)

...したら

...shitara

(as soon as, at the time that)

...した時

...shita toki

(as soon as, at the time that)

...のとき

...no toki

(during the time that)

...の時

...no toki

(during the time that)

いつ

itsu

(at what time; at which time)

何時

itsu

(at what time; at which time)

いつ

itsu

(the time)

何時

itsu

(the time)

いつ

itsu

(what time; which time)

何時

itsu

(what time; which time)