| 2009 | ||
| Jun 2-3 | T W | Registration of Qualified Freshmen Applicants |
| Jun 4-5 | Th - F | Registration of Upper Classmen |
| Jun 8 | Mon | Classes Begin / Opening Exercises / Orientation for Freshmen |
| Jun 12 | Fri | Philippine Independence Day |
| Aug 5-7 | W - F | 1st Periodical Examination |
| Aug 24-28 | M - F | Pagdiriwang ng Linggo ng Wika |
| Aug 28 | Fri | Last Day for submission of 1st Grading Grades |
| Aug | open date | University Intramurals |
| Sep 2 | Wed | Nueva Ecija Day |
| Oct 14-16 | W - F | 2nd Periodical Examination |
| Oct 29 | Thu | Teachers' Day |
| Oct 30 | Fri | Educational Trip |
| Oct 31 | Sat | Beginning of Semestral Break |
| Nov 1 | Sun | All Saint's Day |
| Nov 9 | Mon | Classes Resume |
| Nov 16 | Mon | Last Day for submission of 2nd Grading Grades |
| Nov 26 | Thu | UNIVERSITY MID -YEAR COMMENCEMENT EXERCISES |
| Nov 30 | Mon | Bonifacio Day |
| Dec 9 | Sun | Charter Annniversary, Science City of Muñoz |
| Dec 15-16 | T-W | USHS Sports Fest |
| Dec 17-18 | Th F | Christmas Celebration |
| Dec 19 | Sat | Beginning of Christmas Break |
| 2010 | ||
| Jan 4 | Mon | Classes Resume |
| Jan 6-8 | W-F | 3rd Periodical Examination |
| Jan 16 | Sat | USHS Entrance Examination |
| Jan 29 | Fri | Last Day for submission of 3rd Grading Grades |
| Feb 12 | Fri | JS PROMENADE |
| Feb 22-26 | M-F | USHS Science Fair |
| March 1st Week |
Release of Entrance Examination Result | |
| Mar 12 | Fri | Last Day for Completion of Requirements for Clearance (All year levels. Seniors up to Graduating Class Advisers) |
| Mar 17-19 | W-F | 4th Periodical Examination |
| Mar 26 | Fri | Last Day for Submission of 4th Grading Grades Last Day of Submission of Clearance (Seniors) |
| Mar 30-31 | T-W | USHS Academic Council Meeting |
| Apr 5 | Mon | USHS Achievement Day |
| Apr 7 | Wed | AM - USHS Baccalaureate PM - USHS Tea Party |
| Apr 8 | Thu | USHS Graduation Day |
| Apr 12-13 | M-Tu | Enrolment for SY 2010-2011 -- Freshmen(Qualifiers & Addendum) |
| Apr 14-15 | W-Th | Enrolment for SY 2010-2011 -- Upperclassmen |
| Apr 15 | Th | Enrolment for SY 2010-2011 -- Freshmen(On the waiting list) |
| Apr | University Annual Commencement Exercises | |
| Apr | University Foundation Day | |
| Apr 24 | Sat | University Alumni Homecoming |