Lawrence residents will probably seem grumpy early next week.

Daylight saving time begins at 2 a.m. Sunday. Clocks here will “spring forward” one hour, which also means you’ll lose one hour of sleep.

“I have noticed in the past that the students are a little bit more lethargic,” said Kelly Holtz, a Kennedy School first-grade teacher. “They are just a little bit more sleepy and a little bit out of it.”

The key to not disrupting your sleeping pattern too drastically is to start preparing now by going to bed a little bit earlier than normal each night, Holtz said. She recently recommended 15 minutes to her students’ parents.

“We do keep them on a strict routine. If you get out of a daily schedule, it throws them off,” Holtz said.

Congress in 2005 extended daylight saving time by one extra month in an effort to save energy in the evenings. This is the third year it has started on the second Sunday in March.

Sunday morning will come one hour earlier at Lawrence churches as well. Several Lawrence pastors have learned how to handle their congregations this one Sunday each year.

“You have to give them a minute to get themselves acclimated. They say, ‘I’m here. I’ve lost an hour,'” said the Rev. Delmar White, senior pastor at Ninth Street Missionary Baptist Church, 847 Ohio. “I’m maybe not as long as normal trying to get through. So, maybe they have a week to get acclimated.”