Meet a set of twins, and one might proudly proclaim that he or she is “the older one.” (Later in life, the younger twin may be the one boasting.) But such distinctions won’t be so clear-cut for Samuel and Ronan Peterson, twin brothers born at Massachusetts’s Cape Cod Hospital last weekend. The confusion? Daylight Saving Time.

Cape Cod Health News reported the riddle as follows:

“Samuel was born at 1:39 a.m. on Sunday, November 6, followed 31 minutes later by Ronan, at what would have been 2:10. But at 2 a.m. that morning, Daylight Savings Time ended for the year, making it 1:10 a.m. and leaving Ronan—at least in the official record—older than Samuel.”

While not quite a chicken or the egg dilemma, the situation is hardly common. “It’s the first time I have ever seen this in over 40 years of nursing,” maternity nurse Deb Totten said of the twins’ birth order.

The boys’ father, Seth, had a feeling the time change might cause a conundrum. “I said, they’re either going to be born on two different days, or the time change may come into play,” he said. Call it twintuiton.

 [h/t: Someecards]