Colleton County HighSchool Calendar
2026-27 Academic Calendar
Key dates, holidays, and events for Colleton County High.
School at a Glance
Upcoming events & academic holidays2026-27 Academic Year
JUL
27
Required Professional Development Day
JUL
28
Self-Directed Teacher Work Day
JUL
29
Required Professional Development Day
JUL
30
Self-Directed Teacher Work Day
JUL
31
Required Professional Development Day
AUG
3
First Day of School
SEP
2
1st Quarter Interim Reports
OCT
5
1st Quarter Ends
OCT
6
Parent Conference Day - Early Dismissal
OCT
7
Inclement Weather Make-up Day (1st)
OCT
8
Inclement Weather Make-up Day (2nd)
OCT
12
1st Quarter Report Cards
NOV
11
2nd Quarter Interim Reports
DEC
18
2nd Quarter Ends
JAN
5
Required Professional Development Day
JAN
6
2nd Quarter Report Cards
FEB
9
3rd Quarter Interim Reports
MAR
11
3rd Quarter Ends
MAR
11
Parent Conference Day - Early Dismissal
MAR
12
Inclement Weather Make-up Day (3rd)
MAR
15
3rd Quarter Report Cards
APR
21
4th Quarter Interim Reports
MAY
21
Last Day of School / 4th Quarter Ends
MAY
25
4th Quarter Report Cards
Partner TipEarly dismissal days and parent-teacher conferences are often updated 2 weeks in advance. Check back regularly to stay ahead of the schedule!
Standardized Test Dates
Upcoming national, state, and school calendar dates that affect students at Colleton County High.
National Tests
August 7, 2026
SAT — National
Registration deadline
August 11, 2026
SAT — National
Late registration deadline
August 14, 2026
ACT — National
Registration deadline
August 22, 2026
SAT — National
Test date
August 28, 2026
SAT — National
Registration deadline
September 1, 2026
ACT — National
Late registration deadline
State Assessments
September 1, 2026 – October 15, 2026
KRA
Testing window
SC
November 30, 2026 – January 22, 2027
EOCEP
Testing window
SC
January 25, 2027 – March 19, 2027
KRA
Testing window
SC