University of the Philippines Diliman Academic Calendar (graphics derived from a pdf file released by the University of the Philippines). Classes open Feb. 13, 2023 and close June 3, 2023.
Deadline of submission of grades June 24, 2023.
Maximum of 16 class weeks with 6-7 holidays, as follows: (2 Saturdays Holidays, One Thursday to Monday Holy Week to Araw ng Kagitingan, and one Monday holiday Labor Day), details below:
Holidays:
Feb. 25 Saturday EDSA People’s Uprising
April 6 Holy Thursday
April 7 Good Friday
April 8 Black Saturday
April 9 Easter Sunday
April 10 Monday Araw ng Kagitingan (moved from Apr. 9)
Reading Break April 10 Monday to April 15 Saturday
May 1 Monday Labor Day
June 12 Monday Independence Day
With good weather and no disturbances:
Saturday classes will have a maximum of 14 class meetings (with one possible reading break: Possible Total 13 meetings)
Monday classes will have a maximum of 15 meetings
Thursday classes will have a maximum of 15 meetings (with a possible ACLE on one Thursday and one possible reading break: Possible Total 13 meetings)
Friday classes will have a maximum of 15 meetings with one possible reading break: Possible Total 14 meetings

General calendar for reference: Image below from General Blue, used here non-commercially for academic purposes
