Prepositions - at, in, on AT का इस्तेमाल किया जाता है: 1. Specific time (निर्धारित समय) - E.g. i) I wake up at 7 oclock. ii) She returned home at midnight. 2. Holiday period (छुट्टी का समय) - E.g. i) Everyone seems happy at Christmas. ON का इस्तेमाल किया जाता है: 1. Days of the week (हफ्ते के दिन)- E.g. i) We will visit you on Wednesdays. 2. Specific days (निर्धारित दिन) - E.g. i) I return to my country on the 27th. 3. Dates (तारीख) - E.g. i) We get together on Christmas Day. IN का इस्तेमाल किया जाता है: 1. Months (महीने) - E.g. i) My birthday is in January. 2. Years (साल) - E.g. i) America was discovered in 1492. 3. Seasons (मौसम) - E.g. i) I always go to the beach in summer. 4. Length of time (समय सीमा) - E.g. i) It will be ready in 20 minutes. 5. Centuries (शताबदी) - E.g. i) Life was different in the 15th century. Parts of the day: 1. IN the morning (सुबह में) - E.g. i) I go to the gym in the morning. 2. IN the afternoon (दिन में) - E.g. i) I often feel tired in the afternoon. 3. IN the evening (शाम में) - E.g. i) I study English in the evening. 4. AT the night (रात को) - E.g. i) I like to read in bed at night. On Day Part of the day: E.g. i) We will have a party on Friday night ii) Our flight leaves on Monday morning. Share @English_course_speaking 23.9K views15:51