CO HB1297

Designates year-round daylight saving time (Coordinated Universal Time minus 6 hours) as Colorado's standard time, contingent on federal law authorization and regional coordination.

Activation requires two conditions: federal law must authorize states to adopt permanent daylight saving time, and at least four other Mountain Standard Time Zone states (Arizona, New Mexico, Utah, Wyoming, Montana, Idaho) must enact similar legislation.

Governor must notify the Revisor of Statutes when activation conditions are met; the change takes effect at 2 a.m. on the first Sunday of November following notification.

Cites health, productivity, and quality-of-life benefits including reduced heart attacks, strokes, traffic accidents, and depression, plus increased evening daylight for outdoor activities and commerce.

Subject to voter referendum; if a referendum petition is filed within 90 days of legislative adjournment, the act requires approval at the November 2022 general election to take effect.