Michelle Obama revealed one of the qualities about her husband, Barack Obama, that has gotten on her nerves over the years.

“Barack, you know, he had to adjust to what on time was for me,” the former first lady, 61, told her brother, Craig Robinson, on Wednesday’s premiere episode of their podcast “IMO.”

“Because he was on that island time,” Robinson, 62, added about Barack’s lack of punctuality, referencing his brother-in-law’s Hawaiian roots.

Michelle recalled how “when it’s time to leave,” she would notice her spouse “getting up and going to the bathroom,” and doing other things that could make them late.

“I was like, ‘Dude, a 3 o’clock departure means you’ve done all that,’ you know, it’s like, don’t start looking for your glasses at the 3 o’clock departure,” she added.

However, Michelle gave Barack kudos for working on this flaw, saying, “He’s improved over 30 years of marriage, but that was a ‘you must adjust.’”

The “Becoming” author said their daughters — Malia Obama, 26, and Sasha Obama 23 — know their mom likes to be on time, and so they’re “early” whenever they’re “doing anything” with her.

“They’ve learned how to snap to it,” the mom of two added.

Michelle’s candid disclosure about Barack, 63, comes as the couple tries to quiet separation rumors.

There have been rumblings of marital strife for a few months, with insiders telling Page Six in January that Michelle has “checked out” of her life in Washington, DC, is “fed up with the political circus” and “pretending everything is OK with Barack all the time.”

A source who worked closely with the pair added at the time, “They don’t pretend that they have this Camelot relationship. They’re not trying to present that they’re this magical couple.”

Barack has also been spotted on at least three occasions without his wife, further fueling the rumor mill.

Michelle did not attend former President Jimmy Carter’s funeral in early January because she was reportedly on an “extended holiday vacation.”

Barack then went to a private dinner in DC alone later that month and attended President Trump’s inauguration without her. He was the only former president without his spouse at the ceremony.

A source told Page Six at the time that Michelle’s absence at the inauguration had to do with Trump, 78, adding that she is not “phony.”

“She showed up reluctantly for the election. They were united, but she doesn’t have to unify around [Trump]. She doesn’t have to say anything. Her absence speaks volumes,” the insider said.

Barack has also tried to shut down the speculation with social media posts praising Michelle.

He celebrated her birthday with a flirty message in January and said via Instagram on Valentine’s Day, “Thirty-two years together and you still take my breath away.”

Michelle returned the sweet gesture by writing to Barack via her profile on the holiday, “You’re my rock. Always have been. Always will be.”