近日中に

soon

→ 近日
phrase Rare #37,310
soon Refers to an unspecified time in the near future, often within the next few days. Somewhat formal and more specific than simply saying すぐに.
JA: 近日中に結果をお知らせします。
EN: We will let you know the results soon.

私は近日中に彼を訪問しよう

I’ll visit him soon.

近日中に彼女にまた会うことになっている

I'm supposed to see her again sometime soon.

近日中に来客があるだろう

We’ll probably have visitors in the next few days.