also: このかん
noun, adverb
the other day; recently; during this period
Everyday use is usually read このあいだ and refers to a recent time, often 'the other day.' It can also point to the span just mentioned or currently in mind, especially with words like ずっと.
この間、駅で田中さんに会った。
I ran into Tanaka at the station the other day.
この間ずっと雨
It was raining throughout this whole period.
noun, adverb
Only with reading このかん
Restricted to the reading このかん. This is a more formal, written, or report-like connector meaning that something happened during the same interval.
復旧作業は一週間続いた。この間、住民は避難所で生活した。
Restoration work continued for a week. In the meantime, the residents lived in evacuation shelters.