Flags have flown at half-staff since the death of former President Jimmy Carter on Dec. 29. The official mourning period concludes Monday.

Flags have flown at half-staff for nearly 30 days following former president Jimmy Carter's death. Here is when flags return to full-staff.

In a proclamation issued Dec. 29, Biden ordered flags across the U.S. to be flown at half-staff for 3 days "in honor and tribute to the memory of President James Earl Carter Jr. and as an expression of public sorrow."

Then-President Joe Biden ordered flags be flown at half-staff for 30 days following the death of former President Jimmy Carter.