Time Particle: The particle -에 (-e) can be used to indicate the time at which an action takes place. This particle is attached to time specific words, which includes time, day of the week, date, month, and year. Depending on context this particle can be translated as “at,” “to,” or “in.”
[두 시 반에 끝나요.] (du si ban-e kkeutnayo.) – It ends at two thirty.
In this sentence, the particle -에 (-e) indicates the time it ends – 2:30.
[천 구백 오십 일년에 태어났습니다] (cheon gubaek osip ilnyeon-e taeeonasseumnida) – (I) was born in 1951.
In this sentence, the particle -에 (-e) indicates the year (I) was born.
[월요일에 학교에 안 갑니다.] (woryoil-e hakgyo-e an gamnida]
I don't go to school on Monday. In this specific sentence the particle -에 (-e) is used twice. The first is to mark the time (월요일/woryoil – Monday) and the other one (학교에) marks the direction (because it is used with the verb 가다 (gada) – to go. (Please refer to direction particle for more information on -에 as a direction particle)
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