DENVER — Daylight Saving Time could be observed all year under a bill that’s being considered in the Colorado Senate.

As drafted, Senate Bill 105 would do away with standard time altogether, but its sponsor, Sen. Ray Scott, R-Grand Junction, said he wants to tack an amendment onto it to send the question to the voters this fall.

Under current law, Daylight Saving Time lasts from the second Sunday in March to the first Sunday in November, when time is advanced one hour.

Scott said he’s thinking about sending it to the ballot because of a resolution currently before Congress that would make Daylight Savings year-round nationally. If that happens, Scott said he fears Coloradans wouldn’t be able to choose to stay at standard time instead.

Voters may want to weigh in on that, he said.

The bill before Congress, S.670, has been awaiting debate in the Senate Commerce, Science & Transportation Committee since U.S. Sen. Marco Rubio, R-Fla., introduced it last March. That bill would allow states that exempt themselves from daylight time to choose between that time or standard time.

There also is a proposed ballot measure that would make Colorado stay at daylight time year-round, but that citizens’ initiative has not yet qualified for the fall ballot. It is being pushed by former state Sen. Greg Brophy, R-Wray, and former Deputy Secretary of State Suzanne Staiert. Brophy had introduced a similar daylight saving time measure during his time in the Legislature.

While several state legislatures have considered going to daylight saving time year around, only two, Arizona and Hawaii, don’t observe it. Several U.S. territories, such as Guam and Puerto Rico, also don’t observe daylight saving time, according to the Denver-based National Conference of State Legislatures.

Nine other states, including California and Florida, have approved resolutions over the past two years placing their states on year-round daylight time, but only if Congress authorizes it, NCSL says.