Related Pages 
Caltech Holiday Observances for 2021
| 1 | Friday | January 1 | New Year's Day |
| 2 | Monday | January 18 | Martin Luther King Day |
| 3 | Monday | February 15 | President's Day |
| 4 | Monday | May 31 | Memorial Day |
| 5 | Monday | July 5 | Independence Day Observed |
| 6 | Monday | September 6 | Labor Day |
| 7 | Thursday | November 25 | Thanksgiving Day |
| 8 | Friday | November 26 | Day after Thanksgiving |
| 9 | Thursday | December 23 | Floating Holiday 1 |
| 10 | Friday | December 24 | Christmas Day Observed |
| 11 | Monday | December 27 | Floating Holiday 2 |
| Tuesday | December 28 | Special Release Day 1 | |
| Wednesday | December 29 | Special Release Day 2 | |
| Thursday | December 30 | Special Release Day 3 | |
| 12 | -- | -- | Personal Holiday |
NOTE: Friday, December 31 is the observance of the New Year's Holiday and counts as a holiday in calendar year 2022.