Currently, United States Mountain Standard Time (MST),
defined in federal law as coordinated universal time minus 7 hours, is the standard time within Colorado. During the period of daylight saving time (i.e., the second Sunday in March to the first Sunday in November) time is advanced one hour. Federal law allows a state to stay on standard time
year round, but does not currently allow a state to adopt daylight saving time year round.
The bill makes daylight saving time, defined as coordinated
universal time minus 6 hours, the year-round standard time within the state, but takes effect only if a federal law is enacted to allow states to remain on daylight saving time year round.
