Caltech Holiday Observances for 2025
| Occurence Order | Day of the week | Date | Institute Holiday |
|---|---|---|---|
| 1 | Wednesday | January 1 | New Year's Day |
| 2 | Monday | January 20 | Martin Luther King Jr. Day |
| 3 | Monday | February 17 | President's Day |
| 4 | Monday | May 26 | Memorial Day |
| 5 | Thursday | June 19 | Juneteenth |
| 6 | Friday | July 4 | Independence Day |
| 7 | Monday | September 1 | Labor Day |
| 8 | Thursday | November 27 | Thanksgiving Day |
| 9 | Friday | November 28 | Day after Thanksgiving |
| 10 | Wednesday | December 24 | Floating Holiday 1 |
| 11 | Thursday | December 25 | Christmas Day |
| 12 | Friday | December 26 | Floating Holiday 2 |
| Monday | December 29 | Special Release Day 1 | |
| Tuesday | December 30 | Special Release Day 2 | |
| Wednesday | December 31 | Special Release Day 3 | |
| 13 | - | - | Personal Holiday |
Caltech Holiday Observances for 2026
| Occurence Order | Day of the week | Date | Institute Holiday |
|---|---|---|---|
| 1 | Thursday | January 1 | New Year's Day |
| 2 | Friday | January 2 | Floating Holiday 1 |
| 3 | Monday | January 19 | Martin Luther King Jr. Day |
| 4 | Monday | February 16 | President's Day |
| 5 | Monday | May 25 | Memorial Day |
| 6 | Friday | June 19 | Juneteenth |
| 7 | Friday | July 3 | Independence Day (Observed) |
| 8 | Monday | September 7 | Labor Day |
| 9 | Thursday | November 26 | Thanksgiving Day |
| 10 | Friday | November 27 | Day after Thanksgiving |
| 11 | Friday | December 25 | Christmas Day |
| 12 | Monday | December 28 | Floating Holiday 2 |
| Tuesday | December 29 | Special Release Day 1 | |
| Wednesday | December 30 | Special Release Day 2 | |
| Thursday | December 31 | Special Release Day 3 | |
| 13 | - | - | Personal Holiday |