Types of Preposition - Preposition for Time, Place ...
https://www.studyandexam.com/preposition2.htmlPreposition for Time (e.g. at, on, in) 1. Month or Year. e.g., in March, in July, in 2019, in 2015. 2. A particular time of a day or month or year. e.g., in the evening, in the morning, in the 3rd week of April, in winter, in summer. 3. A century or a specific time in past or future etc.