The document discusses various time expressions including specific times like "at 3 o'clock", days of the week like "on Sunday", general times of day such as "in the morning/afternoon/evening", and specific dates like "on Christmas Day" and "on my birthday".

1. On
Time expressions
In
At at 3 o'clock
at the weekend
At night
in the afternoon
in the evening
in the morning
on Christmas Day
On my
birthday
On Sunday
8-Judith Fontanet Mayans