何時にVましたか?
Nanji ni V mashita ka?
(What time did you…?)

ました形 = 起きました・食べました・行きました・寝ました
Nan ji ni okimasita ka?
— What time did you get up?
Nan ji ni asa gohan wo tabemasita ka?
— What time did you eat breakfast?
Nan ji ni gakkoo ni ikimasita ka?
— What time did you go to school?
Nan ji ni nemashita ka?
— What time did you go to bed?
= This phrase =
〇時にVました。
…ji ni V mashita.
(I did at … o’clock.)
ました形 = 起きました・食べました・行きました・寝ました
Roku-ji ni okimashita.
— I got up at 6 o’clock.
Shichi-ji ni asa gohan wo tabemasita.
— I ate breakfast at 7 o’clock.
Hachi-ji ni gakkoo ni ikimashita.
— I went to school at 8 o’clock.
Jyuu-ji ni nemashita.
— I went to bed at 10 o’clock.