Summer Working Hours -Front Office: Sundays to Wednesdays from 9:30 a.m. until 1:00 p.m. - Student Affairs: Sundays to Wednesdays from 9:30 a.m. until 1:00 p.m. - Finance Office: Sundays to Thursdays from 9:00 a.m. until 12:00 p.m.ISEE is officially an authorized IB World School, Diploma Programme (DP)