〜ころ

ころ
suffix
about, around (time)
time-general
1. about, around (time)
Attached to a time expression to mark an approximate time or period. Written 〜頃(ころ) in kanji; pronounced ごろ directly after a time word (三時(さんじ)ごろ) and ころ after の or a demonstrative (子供(こども)のころ, あのころ).
Let's meet around 3 o'clock.
When I was a child, I often played in the park.
Used for periods in life
Around when will it arrive?
I'll be home around 6, so please have dinner ready.
When I was a child, I played with friends every day. Looking back now, those were the most fun times.

Pronunciation

ごろ directly after a time word or question word (三時(さんじ)ごろ, いつごろ, 今(いま)ごろ); ころ after の or この/その/あの, where it acts as a noun meaning "time, period" (子供(こども)のころ, あのころ).

Common patterns

Watch out

ごろ marks an approximate point in time; ぐらい/くらい marks an approximate amount, including a length of time: 三時(さんじ)ごろ着(つ)く (arrive around three) but 三時間(さんじかん)ぐらいかかる (take about three hours). 三時(さんじ)ぐらい for a clock time is also heard in speech.