two o'clock

Short definition from Wiktionary

Noun

1. 1
   The start of the third hour of the day; 2:00 a.m. (02:00).
2. 2
   The start of the fifteenth hour of the day; 2:00 p.m. (14:00).
3. 3
   A position ahead and rightward (horizontal clock orientation) or above and rightward (vertical clock orientation) (from the location of the 2 mark on a clock face)