The standard Irish school year comprises 183 days for primary schools and 167 days for post-primary (secondary) schools, per Department of Education circulars.
Typical calendar:
Variations: Individual schools may adjust slightly (staff training, local events). The 183/167 minimums are binding; many schools exceed them. Post-primary includes exam periods (Junior/Leaving Cert).
Ireland's school year is among the shorter in OECD—prompting periodic debates about extending instructional time.