Holidays, within the meaning of these compiled laws, are:
Every Sunday;
January 1 (New Year's Day);
Third Monday in January (Martin Luther King, Jr.-Idaho Human Rights Day);
Third Monday in February (Washington's Birthday);
Last Monday in May (Memorial Day);
July 4 (Independence Day);
First Monday in September (Labor Day);
Second Monday in October (Columbus Day);
November 11 (Veterans Day);
Fourth Thursday in November (Thanksgiving Day);
December 25 (Christmas);
Every day appointed by the President of the United States, or by the governor of this state, for a public fast, thanksgiving, or holiday.
Any legal holiday that falls on Saturday, the preceding Friday shall be a holiday and any legal holiday enumerated herein other than Sunday that falls on Sunday, the following Monday shall be a holiday.
Idaho Code § 73-108