１日遅れます。

１日遅れます。

We are gaining a day.

１日(にち)遅(おく)れます。

Ichi nichi okuremasu.

一 (いち)

one; best; first; foremost; beginning; start; bottom string (on a shamisen, etc.)

日 (にち)

Sunday; day (of the month); counter for days; Japan

遅れる (おくれる)

to be late; to be delayed; to fall behind schedule; to be overdue

Readings: ニチ、ジツ、ひ、 -び、 -か

Meanings: day, sun, Japan, counter for days

Readings: チ、おく.れる、おく.らす、おそ.い

Meanings: slow, late, back, later