at ten o'clock
O supermercado abre às dez horas.
The supermarket opens at ten o'clock.
O médico pode consultá-la às dez horas, no dia sete de maio.
The doctor can see her at ten o'clock on May 7th.
Quando eu estudava eu normalmente ia dormir às dez horas.
When I was studying, I would usually go to bed at ten o'clock.
Ele foi se deitar às dez horas ontem.
He went to bed at ten o’clock last night.
The train will arrive at ten o’clock.
Fui dormir às dez horas ontem.
I went to bed at ten o'clock last night.
Class starts at ten o'clock.
I go to bed at ten.
I slept until ten o'clock today.
Bob normalmente vai dormir às dez horas.
Bob usually goes to bed at ten o'clock.