一時

Ima, ichiji desu.

It is one o'clock now.

Watashi wa ichiji ni hirugohan o tabemasu.

I eat lunch at 1 o'clock.

Kaigi wa ichiji kara desu.

The meeting starts at 1 o'clock.

Ashita no ichiji ni aimashō.

Let's meet at 1 o'clock tomorrow.

Ima, nanji desu ka. Ichiji desu ka.

What time is it now? Is it 1 o'clock?

Nichiyōbi wa ichiji ni toshokan ga akimasu.

The library opens at 1 o'clock on Sundays.