The energylegislation was expected to be passed by the Senate, probably today, and sent to President George W. Bush.
The time change is supposed save energy because people have more daylight in the evening and do not have to turn on lights.
The House had approved a two-month extension — one in the spring and the other in the fall. But that was scaled back after airline officials complained that would cause problems with intentional flight schedules. The revised plan would begin daylight-saving time three weeks earlier, on the second Sunday in March and extend it by one week to the first Sunday in November. The extension would begin in March 2007.
The provision, which has Canadian provinces pondering whether they should follow suit, could be scrapped if a planned government study suggests it won't lead to much energy saving.