Alley May Plank wasn't supposed to arrive for four more days.
But at 1:48 p.m. on New Year's Day, Alley became Gettysburg Hospital's first baby born in 2013.
Born to Hope and Greg Plank of Cashtown, Alley was 8 pounds and 12 ounces and 20 inches long.
Hope said she didn't expect Alley to be born on New Year's Day, but she said she thinks it will be something unique for her daughter to share when she's older.
Alley, dressed in a white onesie with a pink, green and purple knit hat, napped throughout most of the afternoon, but she opened her eyes briefly Tuesday evening to eat and to greet some visitors, Hope said.
Brandi - Alley's 2½-year-old sister - sat on the hospital bed looking over her mother's shoulder at her new baby sister.
Brandi shyly nodded when asked about being excited to have a new sister.
"It's just wonderful to have a healthy baby," Hope said.
No births were reported at Hanover Hospital as of Tuesday evening.
York County babies
Mackenzie Taylor Walizer arrived in Memorial Hospital at 12:11 a.m., one of the earliest New Year's Day births in recent memory, local hospital officials said.
The daughter of Chad and Trisha Walizer of West Manchester Township, Mackenzie weighed 7 pounds and 11 ounces, and was 20 inches long.
Mackenzie was due initially Jan. 8, and there was little thought of having a New Year's baby, the parents said.
"We knew she was going to come when she was ready," Trisha Walizer said. "We left it to her to come in her own time."
Josette Myers, a spokeswoman for the hospital, said over the past decade, this is perhaps the earliest New Year's Day delivery. York Hospital had its first birth of the new year around 9:30 a.m., a spokesman said.
Officials from other area hospitals said a birth so close to midnight is unusual.
For Mackenzie's part, she spent the morning alternately asleep in her striped hat and pink pajamas and stretching two tiny hands toward visitors. She let out a little cry, and those in the room agreed her point seemed clear.
She's ready to take on the world, Chad Walizer said.
York Daily Record reporter Tim Stonesifer contributed to this report.